CVEvulnerability
CVE-2026-43638
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-11
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-862
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.
Affected configurations
• bitwarden server (< 2026.4.1)
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://github.com/bitwarden/server/commit/ebbf6dd0fa752114c09d73abb48ce32a50476758 Patch
- https://github.com/bitwarden/server/pull/7394 Issue Tracking, Patch
- https://github.com/bitwarden/server/releases/tag/v2026.4.1 Release Notes
- https://sanjokkarki.com.np/blog/bitwarden-import-org-bypass Exploit, Third Party Advisory
- https://www.vulncheck.com/advisories/bitwarden-server-missing-authorization-via-organization-cipher-import Third Party Advisory