Description
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.
Published: 2026-09-21
Score: 6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Mon, 21 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Warp-tech
Warp-tech warpgate
Vendors & Products Warp-tech
Warp-tech warpgate

Mon, 21 Sep 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Warpgate: Missing authorization check on `PUT /users/:id/roles/:role_id` allows any admin to bypass the `AccessRolesAssign` permission boundary
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 6, 'vector': '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'}


Subscriptions

Warp-tech Warpgate
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-21T18:54:38.214Z

Reserved: 2026-09-14T21:20:41.196Z

Link: CVE-2026-91167

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-21T19:17:15.550

Modified: 2026-09-21T19:17:15.550

Link: CVE-2026-91167

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T20:45:17Z

Weaknesses