CVE-2026-27482

MEDIUM 5.9

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

CVSS Score

5.9

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-396
Vendor	ray-project
Product	ray
Published	Feb 21, 2026
Last Updated	Feb 24, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Affected Versions

ray-project / ray

< 2.54.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq github.com: https://github.com/ray-project/ray/pull/60526 github.com: https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4 github.com: https://github.com/ray-project/ray/releases/tag/ray-2.54.0