Description

An issue was discovered in OpenStack Keystone 13 through 29. 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.

INFO

Published Date :

2026-05-01T00:00:00.000Z

Last Modified :

2026-05-01T07:53:34.311Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2026-43001 vulnerability.

Vendors Products
Openstack
  • Keystone
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-43001.

URL Resource
https://bugs.launchpad.net/keystone/+bug/2149775 cve-icon cve-icon
https://review.opendev.org/c/openstack/keystone/+/985804 cve-icon cve-icon
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CVSS Vulnerability Scoring System

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