CVE-2026-22797: Authentication Bypass by Spoofing

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 externaloauth2token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged...

CVE-2026-22797

CVE-2026-22797 : OpenStack keystonemiddleware vulnerable to header sanitization flaw in external_oauth2_token middleware. Attackers can forge identity headers (X-Is-Admin-Project, X-Roles, X-User-Id) to escalate privileges or impersonate other users, impacting all deployments using this middlewar...