CVE-2025-65073: OpenStack Keystone allows /v3/ec2tokens or /v3/s3tokens request with valid AWS Signature to provide Keystone authorization.

November 17, 2025 (updated November 18, 2025)

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

github.com/advisories/GHSA-hcqg-5g63-7j9h
github.com/openstack/keystone
nvd.nist.gov/vuln/detail/CVE-2025-65073
www.openwall.com/lists/oss-security/2025/11/04/2

Code Behaviors & Features

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