Vulnerability DatabaseCVE-2026-43640
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CVE-2026-43640
Published:May 11, 2026
Updated:May 16, 2026
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.
Affected Packages
https://github.com/bitwarden/server.git (GITHUB):
Affected version(s) >=v1.0.0 <v2026.4.1
Fix Suggestion:
Update to version v2026.4.1
Related Resources (5)
https://github.com/bitwarden/server/releases/tag/v2026.4.1
https://www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-key
https://github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083
https://github.com/bitwarden/server/pull/7403
https://sanjokkarki.com.np/blog/bitwarden-scim-key-bypass
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CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Incorrect Implementation of Authentication Algorithm
CWE-303
EPSS
Base Score:
0.10