CVE-2026-71959

medium

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.

References

https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect

https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery

https://github.com/bitwarden/server/releases/tag/v2026.7.2

https://github.com/bitwarden/server/pull/7934

https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291

Details

Source: Mitre, NVD

Published: 2026-08-10

Updated: 2026-08-10

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Severity: Medium

CVSS v4

Base 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

Severity: Medium