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CVE-2026-22797

9.9 · 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.

Published Jan 19, 2026CWE-290EPSS 0.65%

Overview

CVE-2026-22797 is a critical-severity vulnerability. It was published on January 19, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflaunchpad.net/bugs/2129018Refwww.openwall.com/lists/oss-security/2026/01/16/9Refwww.openwall.com/lists/oss-security/2026/01/15/1Refwww.openwall.com/lists/oss-security/2026/01/16/2Refwww.openwall.com/lists/oss-security/2026/01/16/3Refwww.openwall.com/lists/oss-security/2026/01/16/9Refaccess.redhat.com/errata/RHSA-2026:3402Refaccess.redhat.com/errata/RHSA-2026:3855Refaccess.redhat.com/errata/RHSA-2026:4434Refaccess.redhat.com/errata/RHSA-2026:5133

How CyberStrike helps

Frequently asked questions

What is CVE-2026-22797?

CVE-2026-22797 is a critical-severity vulnerability. It was published on January 19, 2026 and has a CVSS 3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2026-22797?

This vulnerability has a CVSS 3.1 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-22797?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-22797?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-22797 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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