Incorrect Implementation of Authentication Algorithm Affecting keystone package, versions [14.0.0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-KEYSTONE-17671328
- published29 Jun 2026
- disclosed28 May 2026
- creditUnknown
Introduced: 28 May 2026
CVE-2026-42998 (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 Incorrect Implementation of Authentication Algorithm in the authentication process. An attacker can gain unauthorized access to project-scoped resources and perform actions as another user by using valid application credentials within a shared project context. This is only exploitable if the attacker possesses valid application credentials and shares a project context with the victim.