CVE-2026-61909

Medium

An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some…

mitre·CWE-420·Published 2026-09-09

CVSS

4.3

EPSS

0.00

KEV

Exploits

cve.orgen

323 chars

An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some shared access to another user's calendar or address book could read even unshared events or contacts by including the target hrefs in a calendar-multiget or addressbook-multiget REPORT.

NVDen

323 chars

CVSS metrics across sources

Version	Type	Source	Base	Exp	Impact	Vector
3.1	Primary	NVD	4.3	2.8	1.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1	Primary	cve.org	3.5	—	—	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
3.1	Secondary	NVD	3.5	1.8	1.4	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
3.1	Secondary	ENISA EUVD	3.5	—	—	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N