CVE-2026-43638 | BDVDB-2026-332148 Detail
bitwardenserver
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.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-862 Missing Authorization
References#
- https://sanjokkarki.com.np/blog/bitwarden-import-org-bypass
- https://github.com/bitwarden/server/releases/tag/v2026.4.1
- https://github.com/bitwarden/server/pull/7394
- https://github.com/bitwarden/server/commit/ebbf6dd0fa752114c09d73abb48ce32a50476758
- https://www.vulncheck.com/advisories/bitwarden-server-missing-authorization-via-organization-cipher-import
Exploit#
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.