Description
OpenStack Keystone before 26.0.1, 27.0.0, and 28.0.0 allows a /v3/ec2tokens or /v3/s3tokens request with a valid AWS Signature to provide Keystone authorization.
Published: 2025-11-17
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-hcqg-5g63-7j9h OpenStack Keystone allows /v3/ec2tokens or /v3/s3tokens request with valid AWS Signature to provide Keystone authorization.
History

Thu, 27 Nov 2025 00:15:00 +0000

Type Values Removed Values Added
Title openstack-keystone: OpenStack Keystone: Unauthorized access and privilege escalation via AWS signature validation flaw
References
Metrics threat_severity

None

threat_severity

Important


Mon, 17 Nov 2025 23:30:00 +0000

Type Values Removed Values Added
References

Mon, 17 Nov 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 17 Nov 2025 16:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*

Mon, 17 Nov 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Openstack
Openstack keystone
Vendors & Products Openstack
Openstack keystone

Mon, 17 Nov 2025 08:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-863
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N'}


Mon, 17 Nov 2025 07:45:00 +0000

Type Values Removed Values Added
Description OpenStack Keystone before 26.0.1, 27.0.0, and 28.0.0 allows a /v3/ec2tokens or /v3/s3tokens request with a valid AWS Signature to provide Keystone authorization.
References

Subscriptions

Openstack Keystone
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-17T23:04:04.827Z

Reserved: 2025-11-17T00:00:00.000Z

Link: CVE-2025-65073

cve-icon Vulnrichment

Updated: 2025-11-17T23:04:04.827Z

cve-icon NVD

Status : Deferred

Published: 2025-11-17T08:16:25.600

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-65073

cve-icon Redhat

Severity : Important

Publid Date: 2025-11-17T00:00:00Z

Links: CVE-2025-65073 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-11-17T15:15:21Z

Weaknesses