Incorrect Authorization Affecting openstack-keystone-2025.1 package, versions <27.0.1-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.46% (37th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-OPENSTACKKEYSTONE20251-17130988
  • published2 Jun 2026
  • disclosed1 May 2026

Introduced: 1 May 2026

CVE-2026-43001  (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-r0 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. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.

CVSS Base Scores

version 3.1