Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96
- https://github.com/bitwarden/server/pull/7934
- https://github.com/bitwarden/server/releases/tag/v2026.7.2
- https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery
- https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-po
FAQ
What is CVE-2026-71959?
CVE-2026-71959 is a vulnerability with a CVSS score of 5.8 (MEDIUM). 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, arbitraril...
How severe is CVE-2026-71959?
CVE-2026-71959 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-71959?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.