CVE-2026-57520 (GCVE-0-2026-57520)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:08 – Updated: 2026-07-14 21:34 X_Open Source
VLAI
EPSS
VEX
Title
Bitwarden Server < 2026.5.0 Privilege Escalation via Bulk User Remove Endpoint
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 03:30 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://sanjokkarki.com.np/blog/bitwarden-bulk-re… | technical-descriptionexploit |
| https://github.com/bitwarden/server/releases/tag/… | release-notes |
| https://github.com/bitwarden/server/pull/7526 | issue-tracking |
| https://github.com/bitwarden/server/commit/901bb6… | patch |
| https://www.vulncheck.com/advisories/bitwarden-se… | third-party-advisory |
Impacted products
Date Public
2026-04-23 00:00
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