{"id":"CVE-2026-71959","aliases":["EUVD-2026-55631","GHSA-m2wp-hqw2-j56m"],"status":"published","title":"Bitwarden Server \u003c 2026.7.2 Audit Log Injection via POST /collect","description":"Bitwarden Server before 2026.7.2 does not verify that the caller is a member of the organization identified in a POST /collect request body, allowing any authenticated user to write forged, arbitrarily backdated entries into any organization's audit log.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00476,"percentile":0.41652,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-08-10T13:56:05Z","modified":"2026-11-09T02:47:27Z","products":[{"vendor":"bitwarden","product":"server"},{"vendor":"devolutions","product":"server"}],"references":[{"url":"https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery","tags":["technical-description","exploit","evidence"]},{"url":"https://github.com/bitwarden/server/releases/tag/v2026.7.2","tags":["release-notes","advisory"]},{"url":"https://github.com/bitwarden/server/pull/7934","tags":["issue-tracking","patch","fix"]},{"url":"https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291","tags":["patch","fix"]},{"url":"https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71959","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-m2wp-hqw2-j56m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71959.json","tags":["advisory"]},{"url":"https://github.com/bitwarden/server","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-71959","title":"Bitwarden 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log.","status":"published","published":"2026-08-10T13:56:05.142Z","modified":"2026-11-09T02:47:27.963244268Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-09T03:16:17.543303Z"}]}}