High severity8.1NVD Advisory· Published May 11, 2026· Updated May 16, 2026

CVE-2026-43640

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Bitwarden/Serverreferences3 versions
(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*range: <2026.4.1
- (no CPE)range: < 2026.4.1

Patches

Vulnerability mechanics

References

github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083nvdPatch
github.com/bitwarden/server/pull/7403nvdIssue TrackingPatch
sanjokkarki.com.np/blog/bitwarden-scim-key-bypassnvdExploitThird Party Advisory
www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-keynvdThird Party Advisory
github.com/bitwarden/server/releases/tag/v2026.4.1nvdRelease Notes

News mentions

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cvss	0.526
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000