CVE-2026-71959: Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect
Published Aug 10, 2026
·Updated
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 Software
1 affected component
Bitwarden Bitwarden Server<2026.7.2
Event History
Aug 10, 2026
CVE Published
via MITRE·01:56 PM
Data Sourced
via MITRE·01:56 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-71959?
CVE-2026-71959 has a medium severity score of 5.8.
2
How do I fix CVE-2026-71959?
To fix CVE-2026-71959, upgrade to Bitwarden Server version 2026.7.2 or later.
3
What vulnerability does CVE-2026-71959 address?
CVE-2026-71959 addresses audit log injection risks in Bitwarden Server versions prior to 2026.7.2.
4
What can attackers do with CVE-2026-71959?
Attackers can forge, backdate, and write unauthorized entries into an organization’s audit log.
5
Who is affected by CVE-2026-71959?
Any organization using Bitwarden Server versions prior to 2026.7.2 is affected by CVE-2026-71959.