CVE-2026-115910: python-social-auth social-core · Insufficient Verification of Data Authenticity
Affects python-social-auth social-coreSource CVE Database V5
Not known to be exploited · CVSS 6.8 Medium : upgrade to 6.2.0 when convenient.
Data as of 26 Oct 2026, 17:30 UTC
- Patch
- Available – fixed in 6.2.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade python-social-auth social-core to 6.2.0.
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 6.2.0 or later, where the nonce is properly bound to the browser session and OAuth state, preventing reuse attacks. If upgrading immediately is not possible, ensure that DEFAULT_USE_PKCE is enabled to mitigate the risk. No other vendor advisories indicate alternative mitigations or that the issue is already mitigated.
Description
CVE-2026-115910 is a vulnerability in python-social-auth's social-core component prior to version 6.2.0. It involves insufficient verification of the OpenID Connect nonce, which is stored globally rather than being bound to the initiating browser session and OAuth state. This flaw allows an attacker who obtains a victim's unused authorization code to reuse it with a valid state from a separate login, bypassing nonce validation and potentially logging in as the victim if PKCE is disabled. The issue is fixed in version 6.2.0.
References
- github.com/python-social-auth/social-core/security/advisories/GHSA-h2r5-x5m7-3935 (opens in a new tab)
- github.com/python-social-auth/social-core/pull/2141 (opens in a new tab)
- github.com/python-social-auth/social-core/commit/c2f2ae4663bef19ee8b07f2cf5a2344f9155d826 (opens in a new tab)
- github.com/python-social-auth/social-core/releases/tag/6.2.0 (opens in a new tab)