---
id: CVE-2026-71959
title: >-
  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
  organiza…
summary: >-
  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
  organiza…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2026-08-10'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:02:50.260'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71959'
references:
  - url: >-
      https://github.com/bitwarden/server/commit/2aa92a3c8675a28e305e8207ff16592227f96291
    label: disclosure@vulncheck.com
  - url: 'https://github.com/bitwarden/server/pull/7934'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/bitwarden/server/releases/tag/v2026.7.2'
    label: disclosure@vulncheck.com
  - url: 'https://sanjokkarki.com.np/blog/bitwarden-audit-log-forgery'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collect
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.0039
epssPercentile: 0.30412
ingestedAt: '2026-09-24T20:51:40.187Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.