#VU121642 Improper authorization in Keystone middleware - CVE-2026-22797

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Main Vulnerability Database Vulnerabilities #VU121642

#VU121642 Improper authorization in Keystone middleware - CVE-2026-22797

Published: January 19, 2026


Vulnerability identifier: #VU121642
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-22797
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Keystone middleware
Software vendor:
Openstack

Description

The vulnerability allows a remote user to escalate privileges within the application.

The vulnerability exists due to missing authorization checks in the external_oauth2_token middleware. A remote authenticated user can send forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id and escalate privileges within the application. 


Remediation

Install updates from vendor's website.

External links