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CVE-2026-22797

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CVE-2026-22797

Published: Jan 19, 2026

Modified: Jan 20, 2026

PUBLISHED

CVSS v3.1

9.9

CRITICAL

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.

VendorProductVersions

OpenStack

keystonemiddleware

affected
10.5.0 - < 10.7.2
affected
10.8.0 - < 10.9.1
affected
10.10.0 - < 10.12.1

Weaknesses (CWE)

CWE-290

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

References

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