Access Control Bypass Affecting keystone package, versions [0,]


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

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  • Snyk IDSNYK-PYTHON-KEYSTONE-14038400
  • published17 Nov 2025
  • disclosed17 Nov 2025
  • creditkay

Introduced: 17 Nov 2025

NewCVE-2025-65073  (opens in a new tab)
CWE-522  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

keystone is a package that provides authentication, authorization and service discovery mechanisms via HTTP primarily for use by projects in the OpenStack family.

Affected versions of this package are vulnerable to Access Control Bypass via the ec2tokens or s3tokens process when a request with a valid AWS Signature is accepted for authorization. An attacker can gain unauthorized access by submitting specially crafted requests containing valid AWS Signatures.

CVSS Base Scores

version 4.0
version 3.1