{"id":"EUVD-2025-210584","revision":"3e6f7dca6f384de89a6733a35aa2757e","records":[{"revision":"3e6f7dca6f384de89a6733a35aa2757e","observedAt":"2026-11-11T04:37:51.97+00:00","statement":{"source":"euvd","id":"EUVD-2025-210584","aliases":["CVE-2025-71402","GHSA-rf63-989x-x4x8"],"title":"better-auth versions greater than 1.3.34 and before 1.4.0 contain a vulnerability in the multi-session plugin's /sign-out after-hook, which trusts raw multi-session cookies and forwards extracted values to internalAdapter.deleteSessions wit…","description":"better-auth versions greater than 1.3.34 and before 1.4.0 contain a vulnerability in the multi-session plugin's /sign-out after-hook, which trusts raw multi-session cookies and forwards extracted values to internalAdapter.deleteSessions without verifying the cookie signature (e.g., via getSignedCookie). An attacker can supply a forged _multi-* cookie to trigger deletion of arbitrary session tokens.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N","score":2,"severity":null}],"references":["https://github.com/better-auth/better-auth/security/advisories/GHSA-wmjr-v86c-m9jj","https://www.vulncheck.com/advisories/better-auth-before-session-revocation-via-forged-cookie"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-210584","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 1, 2026, 12:22:16 PM","dateUpdated":"Aug 3, 2026, 7:32:01 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-210584","identifiers":["EUVD-2025-210584","CVE-2025-71402","GHSA-rf63-989x-x4x8"]},"retained":false,"historicalAffected":[]}],"coverage":[]}