{"affected":[{"defaultStatus":"affected","ecosystem":"github","packageName":"bitwarden/server","product":"server","source":"CNA: VulnCheck","vendor":"bitwarden","versions":[{"lessThan":"2026.7.2","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-71959","cwes":["CWE-862"],"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.","epss":{"date":"2026-11-08","percentile":0.41414,"score":0.00476},"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery"}],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: VulnCheck","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","version":"4.0"},{"score":5.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","version":"3.1"}],"modifiedAt":1794146914249,"publishedAt":1786370165142,"references":[{"source":"CNA: VulnCheck","tags":["technical-description","exploit"],"url":"https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/bitwarden/server/releases/tag/v2026.7.2"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/bitwarden/server/pull/7934"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/bitwarden/server/pull/7934"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291"}],"revision":"4ca1cd172442d3cf8809757cdcb04eb0ab2dca2ed942a2a6ca90aee6c8ff9587","sources":[{"modifiedAt":1794146914249,"name":"CNA: VulnCheck","retrievedAt":1794151325294,"url":"https://www.cve.org/CVERecord?id=CVE-2026-71959"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794151338023,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-71959"}],"ssvc":{"assessedAt":1786986481719,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect","updatedAt":1794151338023}