SB2026021268 - Red Hat OpenStackServices on OpenShift 18 update for openstack-keystone 

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Main Vulnerability Database SB2026021268

SB2026021268 - Red Hat OpenStackServices on OpenShift 18 update for openstack-keystone

Published: February 12, 2026

Security Bulletin ID SB2026021268
Severity
Critical
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Critical 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Incorrect authorization (CVE-ID: CVE-2025-65073)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect authorization checks within the ec2tokens and s3tokens API endpoints. A remote non-authenticated attacker can send a valid AWS Signature (e.g., from a presigned S3 URL) and obtain Keystone authorization (ec2tokens can yield a fully scoped token; s3tokens can reveal scope accepted by some services), resulting in unauthorized access and code execution.

Deployments where /v3/ec2tokens or /v3/s3tokens are reachable by unauthenticated clients (e.g., exposed on a public API) are affected.


Remediation

Install update from vendor's website.

References