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Security Advisories

CVE-2026-57179

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-57179

Severity

4.2

Medium

CVSS V3

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Summary

social-auth-core has a Session Fixation issue

Description

Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the partial-pipeline resume mechanism accepted partial_token as a bearer credential without binding it to the browser session that created it. Applications using resumable partial pipeline steps could allow an attacker to start an authentication flow, obtain a valid partial token and verification data, and cause a victim's browser to resume that attacker-controlled flow. This could authenticate the victim's browser as the attacker's account. The issue affects applications using partial pipeline steps such as mail_validation or custom steps decorated with @partial. The issue has been fixed in version 5.0.0 by binding partial pipeline resumes to the originating browser session.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2026-57179

Affected packages


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