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

5.9MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

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

Open in CVSS calculator →

Weaknesses

CWE-396

Affected Products

ray-project

oss-project·USaka ray-project/ray, ray

rayLibrary

AI / ML / ml-framework

package-ecosystem

commercialaka any scale

raySaaS

AI / ML / ml-framework

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 →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-27482 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows