CVE-2026-126775
Social-auth-core 4.7.0 before 7.0.0 Login CSRF via SAML RelayState
CVSS Score
4.2
EPSS Score
0.0%
EPSS Percentile
0th
Social-auth-core 4.7.0 before 7.0.0 contains a login cross-site request forgery vulnerability in the SAML backend that restores sessions named in the unsigned RelayState parameter. Attackers can deliver their own valid IdP response and RelayState to a victim's browser via an auto-submitting form, signing the victim into the attacker's account to capture entered data.
| CWE | CWE-352 |
| Vendor | python-social-auth |
| Product | social-auth-core |
| Published | Nov 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
python-social-auth / social-auth-core
4.7.0 < 7.0.0
References
github.com: https://github.com/python-social-auth/social-core/security/advisories/GHSA-4pv2-52v7-vrfx github.com: https://github.com/python-social-auth/social-core/pull/2167 github.com: https://github.com/python-social-auth/social-core/commit/7d9da571fc9ce8bd0003ccfcbfa8ed98c18bb640 github.com: https://github.com/python-social-auth/social-core/releases/tag/7.0.0 vulncheck.com: https://www.vulncheck.com/advisories/social-auth-core-4.7.0-before-7.0.0-login-csrf-via-saml-relaystate
Credits
Zachariah Mithani (AploSec)