CVE-2026-43638 — Bitwarden Server < 2026.4.1 Missing Authorization via Organization Cipher Import
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 /…
Published: 2026-05-11 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7