CVE-2026-57520

HighCVSS 7.1/10Last modified Jul 14, 2026

Description

Bitwarden Server before 2026.5.0 contains a privilege escalation vulnerability that allows authenticated Custom users with ManageUsers permission to remove Admin accounts from an organization by exploiting a missing role hierarchy check in the bulk user-remove endpoint. Attackers can supply Admin organization-user IDs in a bulk DELETE request to bypass the guard enforced on the single-user removal path, effectively removing one or more Admin accounts from an organization.

Metrics

CVSS 3.1 7.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Weakness enumeration

CWE-862

Affected software

No affected versions have been published.

Timeline

Published: Jun 25, 2026
Last modified: Jul 14, 2026
NVD status: Analyzed

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