{"id":"CVE-2026-57175","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57175","generatedAt":"2026-10-28T05:27:58.936Z","title":"Applications using SAML account association could allow an attacker with a valid account on a trusted IdP to link the attacker's SAML identity to a logged-in victim's local account.","description":"Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the SAML backend accepted SAML responses on the Assertion Consumer Service endpoint without verifying that they matched a previously issued `AuthnRequest`. Applications using SAML account association could allow an attacker with a valid account on a trusted IdP to link the attacker's SAML identity to a logged-in victim's local account. The attacker could then authenticate through SAML and gain access to the victim's account. The issue affects applications using the SAML backend together with authenticated account association. The issue has been fixed in version 5.0.0 by validating SAML responses against stored `AuthnRequest` IDs.","published":"2026-09-24T18:17:15.000Z","lastModified":"2026-10-05T16:17:14.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N"},"cwe":["CWE-287"],"affected":[],"epss":{"score":0.00228,"percentile":0.13452,"date":"2026-10-27","history":[{"date":"2026-09-25","score":0.00228,"percentile":0.12107}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-24T18:17:15.000Z","detail":{"score":"6.4","severity":"MEDIUM","publishedAt":"2026-09-24T18:17:14.523Z"},"summary":"New CVE, medium severity (CVSS 6.4)."}],"references":[{"url":"https://github.com/python-social-auth/social-core/security/advisories/GHSA-vq6g-g6c7-5f2j","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57175","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}