CVE-2026-43640

High

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.

SeverityHigh

CVSS8.1

Exploit probability—

ProductBitwarden Server

PublishedMay 11, 2026

First seenMay 11, 2026

Weakness typeCWE-303CWE-303

How to fix

Update

bitwarden server2026.4.1 or later

Patches

github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083

Vendor advisories

github.com/bitwarden/server/releases/tag/v2026.4.1

Affected products

Product	Affected versions	Fixed in
bitwarden server	v < 2026.4.1	2026.4.1

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