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CWE-90

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

BaseDraftSimple82 CVEs
The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.

Common consequences1

  • ConfidentialityIntegrityAvailabilityExecute Unauthorized Code or CommandsRead Application DataModify Application Data

    An attacker could include input that changes the LDAP query which allows unintended commands or code to be executed, allows sensitive data to be read or modified or causes other unintended behavior.

Potential mitigations1

  1. Implementation

    Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue." Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.

Relationships1

CVEs referencing this CWE82

CVEDescriptionSeverityEPSSFlagsModified
CVE-2016-9299

The remoting module in Jenkins before 2.32 and LTS before 2.19.3 allows remote attackers to execute arbitrary code via a crafted serialized Java object, which triggers an LDAP query to a third-party server.

CRITICAL9.8
97%p100
Weaponized
2026-06-17
CVE-2017-14596

In Joomla! before 3.8.0, inadequate escaping in the LDAP authentication plugin can result in a disclosure of a username and password.

NONE
6.88%p94
2026-06-17
CVE-2016-8750

Apache Karaf prior to 4.0.8 used the LDAPLoginModule to authenticate users to a directory via LDAP. However, it did not encoding usernames properly and hence was vulnerable to LDAP injection attacks leading to a denial of service.

MEDIUM6.5
5.18%p92
2026-06-17
CVE-2021-43350

An unauthenticated Apache Traffic Control Traffic Ops user can send a request with a specially-crafted username to the POST /login endpoint of any API version to inject unsanitized content into the LDAP filter.

CRITICAL9.8
4.76%p91
2026-06-17
CVE-2017-4927

VMware vCenter Server (6.5 prior to 6.5 U1 and 6.0 prior to 6.0 U3c) does not correctly handle specially crafted LDAP network packets which may allow for remote denial of service.

NONE
2.32%p83
2026-06-17
CVE-2024-27310

Zoho ManageEngine ADSelfService Plus versions below 6401 are vulnerable to the DOS attack due to the malicious LDAP input.

MEDIUM6.5
2.27%p82
2026-06-17
CVE-2018-5730

MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to circumvent a DN containership check by supplying both a "linkdn" and "containerdn" database argument, or by supplying a DN string which is a left extension of a container DN string but is not hierarchically within the container DN.

LOW3.8
2.24%p82
2026-06-17
CVE-2015-7294

ldapauth-fork before 2.3.3 allows remote attackers to perform LDAP injection attacks via a crafted username.

HIGH7.5
2.14%p81
2026-06-17
CVE-2019-11277

Cloud Foundry NFS Volume Service, 1.7.x versions prior to 1.7.11 and 2.x versions prior to 2.3.0, is vulnerable to LDAP injection. A remote authenticated malicious space developer can potentially inject LDAP filters via service instance creation, facilitating the malicious space developer to deny service or perform a dictionary attack.

HIGH8.1
1.71%p76
2026-06-17
CVE-2023-29050

The optional "LDAP contacts provider" could be abused by privileged users to inject LDAP filter strings that allow to access content outside of the intended hierarchy. Unauthorized users could break confidentiality of information in the directory and potentially cause high load on the directory server, leading to denial of service. Encoding has been added for user-provided fragments that are used when constructing the LDAP query. No publicly available exploits are known.

CRITICAL9.6
1.67%p76
2026-06-17
CVE-2011-4069

html/admin/login.php in PacketFence before 3.0.2 allows remote attackers to conduct LDAP injection attacks and consequently bypass authentication via a crafted username.

NONE
1.56%p74
2026-06-16
CVE-2021-41232

Thunderdome is an open source agile planning poker tool in the theme of Battling for points. In affected versions there is an LDAP injection vulnerability which affects instances with LDAP authentication enabled. The provided username is not properly escaped. This issue has been patched in version 1.16.3. If users are unable to update they should disable the LDAP feature if in use.

CRITICAL9.8
1.52%p73
2026-06-17
CVE-2021-41276

Tuleap is a Libre and Open Source tool for end to end traceability of application and system developments. In affected versions Tuleap does not sanitize properly the search filter built from the ldap_id attribute of a user during the daily synchronization. A malicious user could force accounts to be suspended or take over another account by forcing the update of the ldap_uid attribute. Note that the malicious user either need to have site administrator capability on the Tuleap instance or be an LDAP operator with the capability to create/modify account. The Tuleap instance needs to have the LDAP plugin activated and enabled for this issue to be exploitable. This issue has been patched in Tuleap Community Edition 13.2.99.31, Tuleap Enterprise Edition 13.1-5, and Tuleap Enterprise Edition 13.2-3.

HIGH7.2
1.48%p73
2026-06-17
CVE-2022-45910

Improper neutralization of special elements used in an LDAP query ('LDAP Injection') vulnerability in ActiveDirectory and Sharepoint ActiveDirectory authority connectors of Apache ManifoldCF allows an attacker to manipulate the LDAP search queries (DoS, additional queries, filter manipulation) during user lookup, if the username or the domain string are passed to the UserACLs servlet without validation. This issue affects Apache ManifoldCF version 2.23 and prior versions.

MEDIUM5.3
1.47%p72
2026-06-17
CVE-2021-23335

All versions of package is-user-valid are vulnerable to LDAP Injection which can lead to either authentication bypass or information exposure.

HIGH7.5
1.42%p71
2026-06-17
CVE-2021-43782

Tuleap is a Libre and Open Source tool for end to end traceability of application and system developments. This is a follow up to GHSA-887w-pv2r-x8pm/CVE-2021-41276, the initial fix was incomplete. Tuleap does not sanitize properly the search filter built from the ldap_id attribute of a user during the daily synchronization. A malicious user could force accounts to be suspended or take over another account by forcing the update of the ldap_uid attribute. Note that the malicious user either need to have site administrator capability on the Tuleap instance or be an LDAP operator with the capability to create/modify account. The Tuleap instance needs to have the LDAP plugin activated and enabled for this issue to be exploitable. The following versions contain the fix: Tuleap Community Edition 13.2.99.83, Tuleap Enterprise Edition 13.1-6, and Tuleap Enterprise Edition 13.2-4.

HIGH7.2
1.40%p71
2026-06-17
CVE-2017-8790

An issue was discovered on Accellion FTA devices before FTA_9_12_180. The home/seos/courier/ldaptest.html POST parameter "filter" can be used for LDAP Injection.

NONE
1.37%p71
2026-06-17
CVE-2020-5281

In Perun before version 3.9.1, VO or group manager can modify configuration of the LDAP extSource to retrieve all from Perun LDAP. Issue is fixed in version 3.9.1 by sanitisation of the input.

HIGH7.5
1.36%p70
2026-06-17
CVE-2023-28853

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Starting in version 2.5.0 and prior to versions 3.5.8, 4.0.4, and 4.1.2, the LDAP query made during login is insecure and the attacker can perform LDAP injection attack to leak arbitrary attributes from LDAP database. This issue is fixed in versions 3.5.8, 4.0.4, and 4.1.2.

MEDIUM6.5
1.28%p69
2026-06-17
CVE-2024-31867

Improper Input Validation vulnerability in Apache Zeppelin. The attackers can execute malicious queries by setting improper configuration properties to LDAP search filter. This issue affects Apache Zeppelin: from 0.8.2 before 0.11.1. Users are recommended to upgrade to version 0.11.1, which fixes the issue.

MEDIUM6.5
1.17%p66
2026-06-17
CVE-2021-32651

OneDev is a development operations platform. If the LDAP external authentication mechanism is enabled in OneDev versions 4.4.1 and prior, an attacker can manipulate a user search filter to send forged queries to the application and explore the LDAP tree using Blind LDAP Injection techniques. The specific payload depends on how the User Search Filter property is configured in OneDev. This issue was fixed in version 4.4.2.

MEDIUM4.3
1.07%p63
2026-06-17
CVE-2019-4297

IBM Robotic Process Automation with Automation Anywhere 11 could allow a remote authenticated attacker to conduct an LDAP injection. By using a specially crafted request, an attacker could exploit this vulnerability to make unauthorized queries or modify the LDAP content. IBM X-Force ID: 160761.

MEDIUM5.4
1.06%p63
2026-06-17
CVE-2026-42568

Yamcs is a mission control framework. Prior to versions 5.13.0 and 5.12.7, an LDAP injection vulnerability exists in `org.yamcs.security.LdapAuthModule` when constructing search filters. The username parameter is inserted directly into the LDAP filter without proper RFC 4515 escaping. Versions 5.13.0 and 5.12.7 patch the issue.

MEDIUM4.3
1.03%p62
PoC
2026-07-21
CVE-2022-4254

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

HIGH8.8
0.95%p60
2026-06-17
CVE-2024-33868

An issue was discovered in linqi before 1.4.0.1 on Windows. There is LDAP injection.

CRITICAL9.8
0.90%p58
2026-06-17
CVE-2023-51446

GLPI is a Free Asset and IT Management Software package. When authentication is made against a LDAP, the authentication form can be used to perform LDAP injection. Upgrade to 10.0.12.

HIGH8.1
0.87%p57
2026-06-17
CVE-2026-1498

An LDAP Injection vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to retrieve sensitive information from a connected LDAP authentication server through an exposed authentication or management web interface. This vulnerability may also allow a remote attacker to authenticate as an LDAP user with a partial identifier if they additionally have that user's valid passphrase.

NONE
0.85%p57
2026-08-24
CVE-2015-10027

A vulnerability, which was classified as problematic, has been found in hydrian TTRSS-Auth-LDAP. Affected by this issue is some unknown functionality of the component Username Handler. The manipulation leads to ldap injection. Upgrading to version 2.0b1 is able to address this issue. The patch is identified as a7f7a5a82d9202a5c40d606a5c519ba61b224eb8. It is recommended to upgrade the affected component. VDB-217622 is the identifier assigned to this vulnerability.

CRITICAL9.8
0.85%p56
2026-06-17
CVE-2020-5246

Traccar GPS Tracking System before version 4.9 has a LDAP injection vulnerability. It occurs when user input is being used in LDAP search filter. By providing specially crafted input, an attacker can modify the logic of the LDAP query and get admin privileges. The issue only impacts instances with LDAP configuration and where users can craft their own names. This has been patched in version 4.9.

MEDIUM6.5
0.85%p56
2026-06-17
CVE-2024-54852

When LDAP connection is activated in Teedy versions between 1.9 to 1.12, the username field of the login form is vulnerable to LDAP injection. Due to improper sanitization of user input, an unauthenticated attacker is then able to perform various malicious actions, such as creating arbitrary accounts and spraying passwords.

CRITICAL9.8
0.77%p54
2026-06-17
CVE-2026-47303

Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

HIGH8.8
0.74%p53
2026-09-09
CVE-2025-52575

EspoCRM is an Open Source CRM (Customer Relationship Management) software. EspoCRM versions 9.1.6 and earlier are vulnerable to blind LDAP Injection when LDAP authentication is enabled. A remote, unauthenticated attacker can manipulate LDAP queries by injecting crafted input containing wildcard characters (e.g., *). This may allow the attacker to bypass authentication controls, enumerate valid usernames, or retrieve sensitive directory information depending on the LDAP server configuration. This was fixed in version 9.1.7.

MEDIUM6.5
0.71%p52
2026-06-17
CVE-2026-44930

An LDAP injection vulnerability in the LDAP Certificate repository of the XKMS server in Apache CXF may allow an attacker to retrieve arbitrary certificates from the repository.  Users are recommended to upgrade to versions 4.2.1, 4.1.6 or 3.6.11, which fix this issue.

CRITICAL9.8
0.69%p51
2026-07-23
CVE-2026-25560

WeKan versions prior to 8.19 contain an LDAP filter injection vulnerability in LDAP authentication. User-supplied username input is incorporated into LDAP search filters and DN-related values without adequate escaping, allowing an attacker to manipulate LDAP queries during authentication.

CRITICAL9.8
0.68%p51
2026-07-14
CVE-2026-33289

SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, an LDAP Injection vulnerability exists in the SuiteCRM authentication flow. The application fails to properly sanitize user-supplied input before embedding it into the LDAP search filter. By injecting LDAP control characters, an unauthenticated attacker can manipulate the query logic, which can lead to authentication bypass or information disclosure. Versions 7.15.1 and 8.9.3 patch the issue.

CRITICAL9.8
0.66%p50
2026-06-17
CVE-2023-6905

A vulnerability, which was classified as problematic, has been found in Jahastech NxFilter 4.3.2.5. This issue affects some unknown processing of the file user,adap.jsp?actionFlag=test&id=1 of the component Bind Request Handler. The manipulation leads to ldap injection. The attack may be initiated remotely. The associated identifier of this vulnerability is VDB-248267. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CRITICAL9.8
0.66%p50
2026-06-17
CVE-2022-2232

A flaw was found in the Keycloak package. This flaw allows an attacker to utilize an LDAP injection to bypass the username lookup or potentially perform other malicious actions.

HIGH7.5
0.65%p50
2026-06-17
CVE-2025-48208

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Apache HertzBeat . The attacker needs to have an authenticated account with access, and the attack can only be triggered by crafting custom commands. A successful attack would result in arbitrary script execution. This issue affects Apache HertzBeat: through 1.7.2. Users are recommended to upgrade to version [1.7.3], which fixes the issue.

HIGH8.8
0.63%p49
2026-06-17
CVE-2026-11748

A vulnerability has been identified in centraldogma-server-auth-shiro versions prior to 0.84.0, where the SearchFirstActiveDirectoryRealm substitutes the login username into an LDAP search filter without neutralizing LDAP filter metacharacters, allowing an unauthenticated attacker to manipulate the filter to cause authentication confusion and enumerate the directory structure.

NONE
0.62%p48
2026-09-11
CVE-2026-40459

PAC4J is vulnerable to LDAP Injection in multiple methods. A low-privileged remote attacker can inject crafted LDAP syntax into ID-based search parameters, potentially resulting in unauthorized LDAP queries and arbitrary directory operations. This issue was fixed in PAC4J versions 4.5.10, 5.7.10 and 6.4.1

HIGH8.8
0.61%p47
2026-06-17
CVE-2026-46619

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, MSISDNValidation in the MSISDN authentication module concatenates the request-supplied MSISDN value into an LDAP search filter without escaping, while the default empty trusted-gateway list allows all traffic. In a realm where an MSISDN module is enabled in a reachable authentication chain, an unauthenticated remote attacker can inject LDAP filter metacharacters, select an arbitrary matching user, and obtain a normal authenticated OpenAM session without a password. This issue is fixed in version 16.1.1.

NONE
0.58%p46
2026-09-15
CVE-2026-46745

Apache Airflow FAB Auth Manager contains an LDAP filter injection vulnerability (CWE-90) that allows unauthenticated attackers to exfiltrate directory data or bypass authentication. Upgrade to apache-airflow-providers-fab 3.6.4 or later. If immediate upgrade is not possible, disable LDAP authentication until the provider can be updated.

MEDIUM5.3
0.58%p46
2026-07-23
CVE-2026-75020

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Apache APISIX. A caller who holds valid credentials for one entry in the LDAP directory can authenticate through APISIX as a consumer mapped to a different entry, one the plugin's configured scope was meant to keep out of reach. This issue affects Apache APISIX: from 2.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

HIGH8.1
0.54%p44
2026-08-31
CVE-2026-11770

A flaw was found in 389 Directory Server. An unauthenticated remote attacker can inject LDAP search filters into the CleanAllRUV replication status-check extended operation. Because the handler performs the search against cn=config with elevated replication plugin privileges and returns a boolean match result, the attacker can extract sensitive server configuration metadata, including replication bind DNs and password storage scheme information.

HIGH7.5
0.53%p43
2026-08-18
CVE-2026-0636

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcprov on all (prov modules). This vulnerability is associated with program files LDAPStoreHelper. This issue affects BC-JAVA: from 1.74 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

MEDIUM6.5
0.53%p43
2026-09-15
CVE-2023-3447

The Active Directory Integration / LDAP Integration plugin for WordPress is vulnerable to LDAP Injection in versions up to, and including, 4.1.5. This is due to insufficient escaping on the supplied username value. This makes it possible for attackers, with an existing account on a vulnerable WordPress instance, to extract potentially sensitive information from the LDAP directory.

HIGH7.6
0.53%p43
2026-06-17
CVE-2026-44617

LDAP filter injection vulnerability in Apache Zeppelin. LdapRealm used RFC 4514 distinguished-name escaping when constructing LDAP search filters instead of RFC 4515 filter escaping, leaving special filter characters insufficiently escaped.                   This is an incomplete fix of CVE-2024-31867. This issue affects Apache Zeppelin versions 0.11.1, 0.11.2, and 0.12.0. Users are recommended to upgrade to version 0.12.1, which fixes this issue.

MEDIUM6.5
0.52%p43
2026-08-05
CVE-2026-13696

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in HAVELSAN Inc. Liman MYS allows LDAP Injection. This issue affects Liman MYS: before release.Master.1107.

HIGH8.8
0.52%p43
2026-07-07
CVE-2024-56841

A vulnerability has been identified in Mendix LDAP (All versions < V1.1.2). Affected versions of the module are vulnerable to LDAP injection. This could allow an unauthenticated remote attacker to bypass username verification.

HIGH7.4
0.50%p42
2026-06-17
CVE-2026-49268

A remote attacker can inject LDAP special characters into the Distinguished Name (DN) construction in DefaultLdapRealm class. User-supplied username input is directly concatenated into the LDAP DN template without any escaping of RFC 2253 special characters. This allows an attacker to manipulate the DN structure used for LDAP bind authentication, potentially bypassing authentication or impersonating other users. This issue affects all Apache Shiro versions through 2.2.0, and 3.0.0-alpha-1 when using DefaultLdapRealm Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue.

CRITICAL9.1
0.49%p41
PoC
2026-06-18
CVE-2023-31025

NVIDIA DGX A100 BMC contains a vulnerability where an attacker may cause an LDAP user injection. A successful exploit of this vulnerability may lead to information disclosure.

HIGH7.5
0.49%p41
2026-06-17
CVE-2026-44671

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0.

HIGH7.5
0.48%p40
2026-06-17
CVE-2026-58222

A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search in a trusted context, bypassing normal Access Control List (ACL) enforcement. An authenticated low-privilege domain user can exploit these flaws to disclose confidential Active Directory attributes that would normally be inaccessible. The disclosed information may be leveraged to derive sensitive authentication material, potentially leading to privilege escalation and complete domain compromise. For example: In deployments configured with Group Managed Service Accounts (gMSAs), an attacker can extract the "msKds-RootKeyData" attribute and derive gMSA passwords offline, potentially leading to complete domain compromise if privileged gMSAs are present.

HIGH8.8
0.46%p39
2026-07-30
CVE-2026-44616

LDAP injection vulnerability in Apache Zeppelin. ActiveDirectoryGroupRealm constructed LDAP search filters without escaping user-controlled input, allowing an authenticated attacker to inject LDAP filter syntax through the user-search endpoint                   and potentially expose directory information. The role-lookup path was also affected after successful LDAP authentication. This issue affects Apache Zeppelin versions 0.6.0 through 0.12.0. Users are recommended to upgrade to version 0.12.1, which                   fixes this issue.

MEDIUM6.5
0.45%p38
2026-08-05
CVE-2026-55770

OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, OpenBao used EscapeLDAPValue, an RFC 4514 distinguished-name escaping function, where RFC 4515 LDAP search-filter escaping was required in sdk/helper/ldaputil/client.go GetUserDN. With the LDAP authentication backend configured for an Active Directory UPNDomain path or UserDN and UserAttr binding, an attacker-controlled username containing filter metacharacters could alter the search predicate and select a different directory entry because EscapeLDAPValue does not neutralize the characters handled by ldap.EscapeFilter. A resulting token could be associated with another LDAP identity and gain access to secrets, policies, or modification capabilities assigned to that identity. This issue is fixed in version 2.5.5.

MEDIUM6.8
0.45%p38
2026-09-17
CVE-2026-41919

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Apache OFBiz. This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue.

CRITICAL9.1
0.45%p38
2026-06-17
CVE-2025-12764

pgAdmin <= 9.9  is affected by an LDAP injection vulnerability in the LDAP authentication flow that allows an attacker to inject special LDAP characters in the username, causing the DC/LDAP server and the client to process an unusual amount of data DOS.

HIGH7.5
0.45%p38
2026-06-17
CVE-2026-40193

maddy is a composable, all-in-one mail server. Versions prior to 0.9.3 contain an LDAP injection vulnerability in the auth.ldap module where user-supplied usernames are interpolated into LDAP search filters and DN strings via strings.ReplaceAll() without any LDAP filter escaping, despite the go-ldap/ldap/v3 library's ldap.EscapeFilter() function being available in the same import. This affects three code paths: the Lookup() filter, the AuthPlain() DN template, and the AuthPlain() filter. An attacker with network access to the SMTP submission or IMAP interface can inject arbitrary LDAP filter expressions through the username field in AUTH PLAIN or LOGIN commands. This enables identity spoofing by manipulating filter results to authenticate as another user, LDAP directory enumeration via wildcard filters, and blind extraction of LDAP attribute values using authentication responses as a boolean oracle or via timing side-channels between the two distinct failure paths. This issue has been fixed in version 0.9.3.

HIGH8.2
0.42%p36
2026-06-17
CVE-2026-34578

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldap_escape(). An unauthenticated attacker can inject LDAP filter metacharacters into the username field of the WebGUI login page to enumerate valid LDAP usernames in the configured directory. When the LDAP server configuration includes an Extended Query to restrict login to members of a specific group, the same injection can be used to bypass that group membership restriction and authenticate as any LDAP user whose password is known, regardless of group membership. This vulnerability is fixed in 26.1.6.

HIGH8.2
0.42%p35
2026-06-17
CVE-2026-31828

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.13 and 8.6.26, the LDAP authentication adapter is vulnerable to LDAP injection. User-supplied input (authData.id) is interpolated directly into LDAP Distinguished Names (DN) and group search filters without escaping special characters. This allows an attacker with valid LDAP credentials to manipulate the bind DN structure and to bypass group membership checks. This enables privilege escalation from any authenticated LDAP user to a member of any restricted group. The vulnerability affects Parse Server deployments that use the LDAP authentication adapter with group-based access control. This vulnerability is fixed in 9.5.2-alpha.13 and 8.6.26.

HIGH8.8
0.42%p36
2026-06-17
CVE-2016-9870

EMC Isilon OneFS 8.0.0.0, EMC Isilon OneFS 7.2.1.0 - 7.2.1.2, EMC Isilon OneFS 7.2.0.x, EMC Isilon OneFS 7.1.1.0 - 7.1.1.10, and EMC Isilon OneFS 7.1.0.x is affected by an LDAP injection vulnerability that could potentially be exploited by a malicious user to compromise the system.

NONE
0.42%p35
2026-06-17
CVE-2026-21880

Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to enumerate all LDAP users, discover sensitive user attributes, and perform targeted attacks against specific accounts. This issue is fixed in version 1.2.49.

MEDIUM5.3
0.40%p34
2026-06-17
CVE-2026-41573

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, IdentityResourceV1.queryCollection() passes the _queryId parameter from /json/{realm}/users to CrestQuery with escapeQueryId disabled, bypassing protection added for CVE-2021-29156. The unescaped value reaches DJLDAPv3Repo.getFilter(), where it is concatenated into an LDAP filter, allowing an authenticated attacker to inject LDAP metacharacters for user enumeration and blind LDAP injection. This issue is fixed in version 16.1.1.

NONE
0.36%p30
2026-09-15
CVE-2026-4256

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection. This issue affects PassGate: through 30042026.

HIGH8.2
0.35%p29
2026-07-09
CVE-2026-39962

MISP is an open source threat intelligence and sharing platform. Prior to 2.5.36, improper neutralization of special elements in an LDAP query in ApacheAuthenticate.php allows LDAP injection via an unsanitized username value when ApacheAuthenticate.apacheEnv is configured to use a user-controlled server variable instead of REMOTE_USER (such as in certain proxy setups). An attacker able to control that value can manipulate the LDAP search filter and potentially bypass authentication constraints or cause unauthorized LDAP queries. This vulnerability is fixed in 2.5.36.

CRITICAL9.6
0.35%p28
2026-06-22
CVE-2026-81205

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in Drupal LDAP / Active Directory Integration allows LDAP Injection. This issue affects LDAP / Active Directory Integration versions: from 0.0.0 to 2.2.1.

MEDIUM5.3
0.33%p26
2026-09-16
CVE-2026-57288

Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native (ADSI) authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a matching user whose password they know without knowing their exact user name.

LOW3.7
0.33%p26
2026-06-26
CVE-2025-67493

Homarr is an open-source dashboard. Prior to version 1.45.3, it was possible to craft an input which allowed privilege escalation and getting access to groups of other users due to missing sanitization of inputs in ldap search query. The vulnerability could impact all instances using ldap authentication where a malicious actor had access to a user account. Version 1.45.3 has a patch for the issue.

CRITICAL9.0
0.31%p23
2026-06-17
CVE-2026-19271

Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability in TÜBİTAK BİLGEM Software Technologies Research Institute Liderahenk allows LDAP Injection. This issue affects Liderahenk: from 3.4.0 before 3.5.5.

HIGH7.5
0.30%p23
2026-08-26
CVE-2026-59652

In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.

MEDIUM6.5
0.30%p22
2026-09-02
CVE-2025-35431

CISA Thorium does not escape user controlled strings used in LDAP queries. An authenticated remote attacker can modify LDAP authorization data such as group memberships. Fixed in 1.1.1.

MEDIUM5.4
0.30%p23
2026-06-17
CVE-2026-27860

If auth_username_chars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structure. Do not clear out auth_username_chars, or install fixed version. No publicly available exploits are known.

MEDIUM5.3
0.29%p21
2026-06-17
CVE-2026-24130

Moonraker is a Python web server providing API access to Klipper 3D printing firmware. In versions 0.9.3 and below, instances configured with the "ldap" component enabled are vulnerable to LDAP search filter injection techniques via the login endpoint. The 401 error response message can be used to determine whether or not a search was successful, allowing for brute force methods to discover LDAP entries on the server such as user IDs and user attributes. This issue has been fixed in version 0.10.0.

MEDIUM5.3
0.29%p21
2026-06-17
CVE-2025-27686

Dell Unisphere for PowerMax, version(s) prior to 10.2.0.9 and PowerMax version(s) prior to PowerMax 9.2.4.15, contain an Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Script injection.

MEDIUM4.7
0.29%p21
2026-06-17
CVE-2025-4573

Mattermost versions 10.7.x <= 10.7.1, 10.6.x <= 10.6.3, 10.5.x <= 10.5.4, 9.11.x <= 9.11.13 fail to properly validate LDAP group ID attributes, allowing an authenticated administrator with PermissionSysconsoleWriteUserManagementGroups permission to execute LDAP search filter injection via the PUT /api/v4/ldap/groups/{remote_id}/link API when objectGUID is configured as the Group ID Attribute.

MEDIUM4.1
0.28%p20
2026-06-17
CVE-2025-27631

The TRMTracker web application is vulnerable to LDAP injection attack potentially allowing an attacker to inject code into a query and execute remote commands that can read and update data on the website.

MEDIUM6.5
0.27%p19
2026-06-17
CVE-2026-53658

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP uid search UserFilter without escaping LDAP metacharacters. An unauthenticated attacker with network access to the CA enrollment endpoint can alter the LDAP search before password validation and potentially steer authentication attempts toward a victim account. Deployments that do not use an LDAP backend are unaffected. This issue is fixed in version 1.5.21.

NONE
0.26%p18
2026-09-16
CVE-2026-78579

The Okta Access Gateway does not sanitize SAML assertion attribute values before interpolating them into LDAP search filters in the LDAP datastore configuration. The raw values are substituted directly into the filter string and passed to the LDAP search operation, resulting in modification of the intended query logic.

MEDIUM6.8
0.25%p16
2026-09-10
CVE-2026-33751

n8n is an open source workflow automation platform. Prior to versions 1.123.27, 2.13.3, and 2.14.1, a flaw in the LDAP node's filter escape logic allowed LDAP metacharacters to pass through unescaped when user-controlled input was interpolated into LDAP search filters. In workflows where external user input is passed via expressions into the LDAP node's search parameters, an attacker could manipulate the constructed filter to retrieve unintended LDAP records or bypass authentication checks implemented in the workflow. Exploitation requires a specific workflow configuration. The LDAP node must be used with user-controlled input passed via expressions (e.g., from a form or webhook). The issue has been fixed in n8n versions 1.123.27, 2.13.3, and 2.14.1. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Limit workflow creation and editing permissions to fully trusted users only, disable the LDAP node by adding `n8n-nodes-base.ldap` to the `NODES_EXCLUDE` environment variable, and/or avoid passing unvalidated external user input into LDAP node search parameters via expressions. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

MEDIUM4.8
0.25%p16
2026-06-17
CVE-2026-19930

A security flaw has been discovered in Dolibarr up to 23.0.3. Affected is an unknown function of the file htdocs/user/card.php of the component User Cloning. The manipulation of the argument ID results in ldap injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The patch is identified as 798e65356ede03c2812ab1a728f23fae34de5592. It is advisable to implement a patch to correct this issue.

MEDIUM6.3
0.24%p16
2026-08-20
CVE-2026-33609

Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.

MEDIUM6.5
0.24%p16
2026-06-17
CVE-2026-16071

A flaw was found in the LDAP storage provider of Keycloak, which is used to federate user identities from external directories. The issue occurs when a delegated administrator performs a search using a specific LDAP entry Distinguished Name (DN). Due to missing validation, the system allows lookups for users located outside the configured search boundary, leading to the disclosure of account information from unauthorized parts of the directory and unintended importing of those users into local storage.

MEDIUM5.4
0.23%p14
2026-08-31