Bug 2540598 (CVE-2026-57176) - CVE-2026-57176 social-auth-core: social-auth-core: Account takeover via Vend user ID collision
Summary: CVE-2026-57176 social-auth-core: social-auth-core: Account takeover via Vend ...
Keywords:
Status: NEW
Alias: CVE-2026-57176
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 17:32 UTC by OSIDB Bzimport
Modified: 2026-09-24 18:31 UTC (History)
10 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-24 17:32:25 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.