Incorrect Authorization Affecting openstack-keystone-2025.1 package, versions <27.0.1_git20260618-r6


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.3% (22nd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENSTACKKEYSTONE20251-17816697
  • published4 Jul 2026
  • disclosed28 May 2026

Introduced: 28 May 2026

CVE-2026-42998  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Chainguard openstack-keystone-2025.1 to version 27.0.1_git20260618-r6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openstack-keystone-2025.1 package and not the openstack-keystone-2025.1 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone application credential authentication plugin does not verify that the user supplied in the authentication request matches the owner of the application credential. An attacker can authenticate with their own application credential ID and secret while specifying a different user's name and domain in the request body. Keystone issues a token attributed to the victim user. The impersonated token is project-scoped and carries the intersection of the application credential's roles and the victim's actual roles on the project. This enables audit evasion, reading the victim's credentials, and acting as the victim within shared projects.

CVSS Base Scores

version 3.1