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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
python-social-auth social-auth-core unaffected
Version Status Constraints
4.7.0 affected < 7.0.0
7.0.0 unaffected —

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/python-social-auth/social-core/commit/7d9da571fc9ce8bd0003ccfcbfa8ed98c18bb640 cve-icon cve-icon
https://github.com/python-social-auth/social-core/pull/2167 cve-icon cve-icon
https://github.com/python-social-auth/social-core/releases/tag/7.0.0 cve-icon cve-icon
https://github.com/python-social-auth/social-core/security/advisories/GHSA-4pv2-52v7-vrfx cve-icon cve-icon
https://www.vulncheck.com/advisories/social-auth-core-4.7.0-before-7.0.0-login-csrf-via-saml-relaystate cve-icon cve-icon
History

Wed, 11 Nov 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Social-auth-core 4.7.0 before 7.0.0 Login CSRF via SAML RelayState
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-11T18:41:07.737Z

Reserved: 2026-11-11T18:27:27.098Z

Link: CVE-2026-126775

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-11T19:17:38.110

Modified: 2026-11-11T19:17:38.110

Link: CVE-2026-126775

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses