Missing Authentication for Critical Function Affecting ray package, versions [,2.54.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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 applicationsSnyk Learn
Learn about Missing Authentication for Critical Function vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PYTHON-RAY-15325639
- published22 Feb 2026
- disclosed20 Feb 2026
- creditQi Deng
Introduced: 20 Feb 2026
NewCVE-2026-27482 (opens in a new tab)How to fix?
Upgrade ray to version 2.54.0 or higher.
Overview
ray is an A system for parallel and distributed Python that unifies the ML ecosystem.
Affected versions of this package are vulnerable to Missing Authentication for Critical Function through unauthenticated access to the DELETE endpoints on the Dashboard HTTP server. An attacker can shut down services or delete jobs by sending DELETE requests from a browser context (e.g., via DNS rebinding or CSRF) when the dashboard is reachable (e.g., ray start --head --dashboard-host=0.0.0.0), and token auth is disabled.
Note: Dashboard token auth is optional and off by default, and binding to 0.0.0.0 is common for remote access.