CVE-2026-22797
An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.
No affected software listed.
- http://www.openwall.com/lists/oss-security/2026/01/15/1
- http://www.openwall.com/lists/oss-security/2026/01/16/2
- http://www.openwall.com/lists/oss-security/2026/01/16/3
- http://www.openwall.com/lists/oss-security/2026/01/16/9
- https://launchpad.net/bugs/2129018
- https://www.openwall.com/lists/oss-security/2026/01/16/9
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