CVE-2026-43638
MEDIUM SEVERITYCVSS Score & Metrics
Base Score
5.4 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Vulnerability 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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-862
Source
NVD
Vendor
bitwarden
Product
server
External References
- https://github.com/bitwarden/server/commit/ebbf6dd0fa752114c09d73abb48ce32a50476758
- https://github.com/bitwarden/server/pull/7394
- https://github.com/bitwarden/server/releases/tag/v2026.4.1
- https://sanjokkarki.com.np/blog/bitwarden-import-org-bypass
- https://www.vulncheck.com/advisories/bitwarden-server-missing-authorization-via-organization-cipher-import
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