VULNERABILITY INTELLIGENCE
CVE-2026-43638
CVSS score5.4 MEDIUM
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-05-11
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Description
Bitwarden Server prior to v2026.4.1 contains a missing authorization vulnerability that allows any authenticated user to write ciphers into an arbitrary organization via `POST /ciphers/import-organization` by submitting an empty `collections` array, which causes the server-side permission check to be skipped.
Weakness classification
- disclosure@vulncheck.com: CWE-862
Primary references
- disclosure@vulncheck.com — Patch
- disclosure@vulncheck.com — Issue Tracking, Patch
- disclosure@vulncheck.com — Release Notes
- disclosure@vulncheck.com — Exploit, Third Party Advisory
- disclosure@vulncheck.com — Third Party Advisory