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CVE-2026-27482

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

Published: Feb 21, 2026Updated: Mar 4, 2026 Sources: CVE List NVD GHSACWE-396
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.3%
Top 83.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:NI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:HAvailability
High
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Weaknesses

CWE-396

Affected Products

rayray-project
Library
AI / ML / ml-framework
rayPyPIOSS Libraries
rayanyscale
SaaS
AI / ML / ml-framework
ray-projectoss-projectUSAI / MLaka ray-project/ray, ray
pypipackage-ecosystemOSS Libraries
anyscalecommercialAI / MLaka any scale

Exploitability

Official Patch Available

References

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
and 3 more references View all →

Timeline

Published
Feb 21, 2026
Last Updated
Mar 4, 2026

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