{"id":"DEBIAN-CVE-2026-22797","details":"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.","modified":"2026-09-11T08:47:42.334123102Z","published":"2026-01-19T18:16:04.950Z","upstream":["CVE-2026-22797"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-22797"}],"affected":[{"package":{"name":"python-keystonemiddleware","ecosystem":"Debian:13","purl":"pkg:deb/debian/python-keystonemiddleware?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.9.0-2+deb13u1"}]}],"versions":["10.9.0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22797.json"}},{"package":{"name":"python-keystonemiddleware","ecosystem":"Debian:14","purl":"pkg:deb/debian/python-keystonemiddleware?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.12.0-3"}]}],"versions":["10.12.0-1","10.12.0-2","10.9.0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22797.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L"}]}