Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-91167— Warpgate: Missing authorization check on `PUT /users/:id/roles/:role_id` allows any admin to bypass the `AccessRolesAssign` permission boundary

Quick assessment

Affected
warp-tech warpgate
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 6.0 · Medium EPSS 0.24% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
warp-tech warpgate < 0.28.4 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-91167

Vulnerability Information

Shenlong is analyzing...

Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Warpgate: Missing authorization check on `PUT /users/:id/roles/:role_id` allows any admin to bypass the `AccessRolesAssign` permission boundary
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
warp-tech warpgate < 0.28.4 -

II. Public POCs for CVE-2026-91167

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-91167

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-91167 (1)

Other References for CVE-2026-91167 (2)

Same Patch Batch · warp-tech · 2026-09-21 · 7 CVEs total

CVE-2026-58491 9.3 CRITICAL Warpgate: Reflected XSS in SSO return endpoint via attacker-controlled next parameter
CVE-2026-63330 7.7 HIGH Warpgate: Missing Admin Authorization on Live Recording Stream WebSocket Allows Any Authen
CVE-2026-91166 5.7 MEDIUM Warpgate: Web SSH stores a jump host's key against the target's address, so it validates a
CVE-2026-63329 4.9 MEDIUM Warpgate: x-warpgate-username Header Not Stripped from Client Requests Enables Identity Sp
CVE-2026-91164 4.3 MEDIUM Warpgate: API tokens bypass the user's allowed_ip_ranges restriction
CVE-2026-91165 2.4 LOW Warpgate: Markup injection in SSO form_post return page via unencoded redirect/error value

IV. Related Vulnerabilities

Same product: warpgate
Same vendor: warp-tech
Same weakness: CWE-862

V. Comments for CVE-2026-91167

No comments yet

Leave a comment