CVE-2026-91167CWE-862broken-access-control

CVE-2026-91167

published September 21, 2026

CVSS
6.0
EPSS
0%
Percentile
34.6
In the wild
Unconfirmed
What it is

Warpgate is an open source SSH, HTTPS and MySQL bastion host for Linux. Prior to 0.28.4, PUT /@warpgate/admin/api/users/:id/roles/:role_id reaches api_update_user_role in warpgate-admin/src/api/users.rs through AdminContext but does not require AdminPermission::AccessRolesAssign. A limited administrator with any permission can update expires_at on an existing UserRoleAssignment and clear revoked_at, extending an expiring grant or reinstating a revoked grant. The endpoint cannot create a role assignment that never existed because it returns not found without a matching user and role pair. This issue is fixed in version 0.28.4.

The record
Technical detail
CVSS
6.0 · NONE
CVSS v4.0
6.0 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00414 · 34.6th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-21T23:17Z
References (3)
EPSS history
Timeline
  • 23 SEP 03:49Z
    EPSS moved — → 0%
    epss
  • 21 SEP 18:54Z
    Warpgate: Missing authorization check on `PUT /users/:id/roles/:role_id` allows any admin to bypass the `AccessRolesAssign` permission boundary
    cvelistv5