CVE-2026-71959
Bitwarden Server < 2026.7.2 Audit Log Injection via POST /collect
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 10, 2026
- Updated
- Aug 17, 2026
- Reserved
- Aug 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulnCheck |
| 3.1 | 5.8 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
serverbitwarden |
|
References
- Researcher Blogtechnical-descriptionexploit
- Release Notesrelease-notes
- Pull Requestissue-tracking
- Patch Commitpatch
- https://www.vulncheck.com/advisories/bitwarden-server-audit-log-injection-via-post-collectthird-party-advisory
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