CVE-2026-43640
HIGHBitwarden Server < 2026.4.1 Authentication Bypass via SCIM API Key
Title source: cnaDescription
Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.
References (5)
Core 5
Core References
Exploit technical-description
exploit
https://sanjokkarki.com.np/blog/bitwarden-scim-key-bypass
Release Notes release-notes
https://github.com/bitwarden/server/releases/tag/v2026.4.1
Issue Tracking issue-tracking
https://github.com/bitwarden/server/pull/7403
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-key
Scores
CVSS v3
8.1
EPSS
0.0050
EPSS Percentile
38.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-303
Status
published
Products (1)
bitwarden/server
< 2026.4.1 (2 CPE variants)
Published
May 11, 2026
Tracked Since
May 11, 2026