CVE-2026-71959: Bitwarden Server

Medium severity, CVSS 5.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Bitwarden Server: before 2026.7.2 (fixed in 2026.7.2)

Published 2026-08-10. Last modified 2026-09-24.