CVE-2026-57176: python-social-auth social-core · Authentication Bypass by Alternate Name
Affects python-social-auth social-coreSource CVE Database V5
Not known to be exploited · CVSS 6.8 Medium : upgrade to 5.0.0 when convenient.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.0.0
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Upgrade python-social-auth social-core to 5.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| python-social-authsocial-core | Affected
| Fixed in
|
PyPIsocial-corepkg:pypi/social-coreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade python-social-auth social-core to version 5.0.0 or later, which patches the authentication bypass by properly differentiating users from different Vend shops. No other mitigation is indicated by the vendor advisory.
Description
CVE-2026-57176 is an authentication bypass vulnerability in python-social-auth's social-core component affecting the Vend OAuth2 backend prior to version 5.0.0. The issue arises when multiple Vend shops authenticate through the same application, causing user ID collisions due to reliance on numeric Vend user_id as the social-auth UID. This allows a user from one shop to be authenticated as a different local account associated with the same numeric user ID from another shop. The vulnerability is patched in version 5.0.0.