Authentication Bypass by Spoofing Affecting keystonemiddleware package, versions [10.5.0,10.7.2)[10.8.0,10.9.1)[10.10.0,10.12.1)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-PYTHON-KEYSTONEMIDDLEWARE-15038739
- published20 Jan 2026
- disclosed19 Jan 2026
- creditGrzegorz Grasza
Introduced: 19 Jan 2026
CVE-2026-22797 (opens in a new tab)How to fix?
Upgrade keystonemiddleware to version 10.7.2, 10.9.1, 10.12.1 or higher.
Overview
Affected versions of this package are vulnerable to Authentication Bypass by Spoofing in the external_oauth2_token middleware. An attacker can gain unauthorized access or escalate privileges by sending forged authentication headers such as X-Is-Admin-Project, X-Roles, or X-User-Id.