CVE-2026-27482CWE-396

Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)

Medium · published February 21, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
17.0
In the wild
Unconfirmed
What it is

Ray is an AI compute engine. In versions 2.53.0 and below, thedashboard HTTP server blocks browser-origin POST/PUT but does not cover DELETE, and key DELETE endpoints are unauthenticated by default. If the dashboard/agent is reachable (e.g., --dashboard-host=0.0.0.0), a web page via DNS rebinding or same-network access can issue DELETE requests that shut down Serve or delete jobs without user interaction. This is a drive-by availability impact. The fix for this vulnerability is to update to Ray 2.54.0 or higher.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00256 · 17.0th percentile
Weakness
CWE-396 · Declaration of Catch for Generic Exception
Published
2026-02-21T09:18Z
EPSS history
Timeline
  • 21 FEB 09:18Z
    Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)
    cvelistv5