CVE-2026-22797

Published: Jan 19, 2026Updated: Sep 10, 2026 Sources: CVE List NVDCWE-290

9.9CRITICAL

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:LAvailability

Low

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Weaknesses

CWE-290

Affected Products

OpenStack

oss-project·USaka openstack foundation

keystonemiddlewareLibraryLibrary

Cloud & SaaS / cloud-platform

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://launchpad.net/bugs/2129018

launchpad.net

https://www.openwall.com/lists/oss-security/2026/01/16/9

openwall.com

http://www.openwall.com/lists/oss-security/2026/01/15/1

openwall.com

and 11 more references View all →

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