{"id":"CVE-2026-57179","title":"Python Social Auth is a social authentication/registration mechanism","summary":"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…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-384","CWE-613"],"vendor":"python-social-auth","product":"social-core","affected":["social-core < 5.0.0"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T19:17:14.510","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-57179","references":[{"url":"https://github.com/python-social-auth/social-core/security/advisories/GHSA-vqg6-3fw6-j9jg","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57179"},{"url":"https://github.com/python-social-auth/social-core/pull/1816"},{"url":"https://github.com/python-social-auth/social-core/commit/0418782454ac7bbc6a9230ea21f7f5066fe89686"},{"url":"https://github.com/python-social-auth/social-core/releases/tag/5.0.0"},{"url":"https://github.com/advisories/GHSA-vqg6-3fw6-j9jg"},{"url":"https://github.com/python-social-auth/social-core"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57179.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-57179"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540614"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-57179"}],"tags":["nvd","cve.org","ghsa","pip","osv","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-24T18:10:50.898479Z"},"ingestedAt":"2026-09-24T17:48:30.403Z","aliases":["GHSA-vqg6-3fw6-j9jg"],"ecosystem":"pip","patched":["social-auth-core 5.0.0"],"epss":0.00158,"epssPercentile":0.04184,"slug":"CVE-2026-57179","body":"## Overview\n\nPython 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-57179)\n\nAffected packages:\n\n- `social-auth-core < 5.0.0`\n\nPatched in:\n\n- `social-auth-core 5.0.0`\n\nSource: https://github.com/advisories/GHSA-vqg6-3fw6-j9jg\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Ansible Automation Platform 2 · no fix planned: Red Hat Ansible Automation Platform 2 · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57179.json)","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}