CVE-2026-43001An issue was discovered in OpenStack Keystone before 29.0.2.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 8.0 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-863, CWE-1288
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Aug 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openstack keystone openstack:keystone | from 14.0.0 before 27.0.2; from 28.0.0 before 28.0.2; from 29.0.0 before 29.0.2 | NVD |
References
- https://bugs.launchpad.net/keystone/+bug/2149775exploit, issue-tracking, patch, third-party-advisory
- https://review.opendev.org/c/openstack/keystone/+/985804patch
- https://security.openstack.org/ossa/OSSA-2026-015.htmlpatch, vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:39808
- https://access.redhat.com/errata/RHSA-2026:54757
- https://access.redhat.com/security/cve/CVE-2026-43001
- https://bugzilla.redhat.com/show_bug.cgi?id=2464305
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43001.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.