CVEvulnerability
CVE-2026-57520
7.1 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-25
- Last modified
- 2026-10-25
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.1 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 7.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
- Weaknesses
- CWE-862
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.
Affected configurations
• bitwarden server (< 2026.5.0)
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://github.com/bitwarden/server/commit/901bb67157c0f80d369c40b76742fdf7623da4e4 Patch
- https://github.com/bitwarden/server/pull/7526 Issue Tracking
- https://github.com/bitwarden/server/releases/tag/v2026.5.0 Release Notes
- https://sanjokkarki.com.np/blog/bitwarden-bulk-remove-admin Exploit, Patch, Third Party Advisory
- https://www.vulncheck.com/advisories/bitwarden-server-privilege-escalation-via-bulk-user-remove-endpoint Third Party Advisory