Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the Vend OAuth2 backend used only the numeric Vend user_id as the social-auth UID. When multiple Vend shops authenticate through the same application, users from different shops with the same internal Vend user ID could collide in the social-auth association table. A user from one shop could then be authenticated as the local account previously associated with the same numeric user ID from another shop. The issue affects applications using the Vend OAuth2 backend with more than one Vend shop. Version 5.0.0 patches the issue.
Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, sites using wildcard patterns in the allowed_iframes setting could accept a crafted iframe URL whose allowlisted suffix appeared after a URL authority separator. The wildcard origin check matched the allowed domain text, while browser URL parsing selected a different attacker-controlled origin. A user with posting privileges could exploit the flaw through a post or a Onebox oEmbed response and cause an attacker-controlled iframe to be rendered independently of the allowlisted domain. Successful exploitation requires a site-configured wildcard iframe pattern and the ability to create a post or trigger an oEmbed request for an attacker-controlled URL. This issue is fixed in versions 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0.
A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.
| Version | Type | Source | Base | Exp | Imp |
|---|---|---|---|---|---|
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | NVD | 7.1 | 1.8 | 5.2 |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Primary | cve.org | 7.1 | — | — |
| 3.1 | Secondary | NVD | 7.1 | 1.8 | 5.2 |
| 3.1 | Secondary | ENISA EUVD | 7.1 | — | — |