5.4

CVE-2026-43638

Exploit

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 /ciphers/import-organization` by submitting an empty `collections` array, which causes the server-side permission check to be skipped.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Bitwarden ≫ Server Version < 2026.4.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.085
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 5.4 2.8 2.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
disclosure@vulncheck.com 5.3 0 0
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
CWE-862 Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

https://github.com/bitwarden/server/commit/ebbf6dd0fa752114c09d73abb48ce32a50476758
Patch
https://github.com/bitwarden/server/pull/7394
Patch
Issue Tracking
https://github.com/bitwarden/server/releases/tag/v2026.4.1
Release Notes
https://sanjokkarki.com.np/blog/bitwarden-import-org-bypass
Third Party Advisory
Exploit
https://www.vulncheck.com/advisories/bitwarden-server-missing-authorization-via-organization-cipher-import
Third Party Advisory