CVE-2026-71959

MEDIUM 5.8

Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect

CVSS Score

5.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	bitwarden
Product	server
Published	Aug 10, 2026
Last Updated	Aug 10, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

bitwarden / server

0 < 2026.7.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

sanjokkarki.com.np: https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery github.com: https://github.com/bitwarden/server/releases/tag/v2026.7.2 github.com: https://github.com/bitwarden/server/pull/7934 github.com: https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291 vulncheck.com: https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect

Credits

Sanjok Karki