VULNERABILITY INTELLIGENCE

CVE-2026-22797

CVSS score9.9 CRITICAL
EPSS probability0.65%
CISA KEVNot currently listed
Published2026-01-19
Last modified2026-09-10
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Description

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.

Weakness classification

  • cve@mitre.org: CWE-290
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-290

Primary references