VDB
DEBIAN-CVE-2026-22797
DEBIAN-CVE-2026-22797
PUBLISHED
CVSS 9.899999618530273 CRITICAL
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.
Risk Scores
CVSS 3.1
9.899999618530273
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | python-keystonemiddleware | 0, 10.9.0-2, 0 |
| Debian:14 | python-keystonemiddleware | 0, 10.12.0-1, 10.12.0-2 |
Timeline
- Jan 19, 2026 CVE Published
- Apr 28, 2026 CVE Updated