7.1
CVE-2026-57520
- EPSS 0.35%
- Veröffentlicht 25.06.2026 19:08:41
- Zuletzt bearbeitet 14.07.2026 22:17:23
- CVE-Watchlists
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LoginBitwarden Server < 2026.5.0 Privilege Escalation via Bulk User Remove Endpoint
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.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.35% | 0.278 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| disclosure@vulncheck.com | 7.1 | 0 | 0 |
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
|
| disclosure@vulncheck.com | 7.1 | 2.8 | 4.2 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
|
CWE-862 Missing Authorization
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
https://sanjokkarki.com.np/blog/bitwarden-bulk-remove-admin
https://github.com/bitwarden/server/releases/tag/v2026.5.0
https://github.com/bitwarden/server/pull/7526
https://github.com/bitwarden/server/commit/901bb67157c0f80d369c40b76742fdf7623da4e4
https://www.vulncheck.com/advisories/bitwarden-server-privilege-escalation-via-bulk-user-remove-endpoint