CVE-2026-22797

Summary

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.

Affected Software

VendorProductVersion RangeStatus
OpenStackkeystonemiddleware10.5.0 < 10.7.2affected
OpenStackkeystonemiddleware10.8.0 < 10.9.1affected
OpenStackkeystonemiddleware10.10.0 < 10.12.1affected

Weaknesses

  • CWE-290: CWE-290 Authentication Bypass by Spoofing

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

keystonemiddleware: OpenStack keystonemiddleware: Privilege escalation and user impersonation via forged authentication headers

Additional References

References