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Ray < 2.52.0 Remote Code Execution (CVE-2025-62593)

critical Nessus Plugin ID 342143

Synopsis

The remote host contains a Ray Dashboard service that is affected by a remote code execution vulnerability.

Description

The Ray Dashboard service running on the remote host is prior to version 2.52.0. It is, therefore, affected by a remote code execution vulnerability:

 - Ray's browser-based attack protection relies solely on checking that the User-Agent header starts with 'Mozilla'. The Fetch specification allows Firefox and Safari to modify this header. When combined with DNS rebinding attacks, a malicious website or advertisement visited by a developer running Ray can execute arbitrary code on that developer's machine. (CVE-2025-62593)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Ray version 2.52.0 or later.

See Also

http://www.nessus.org/u?687b28ec

Plugin Details

Severity: Critical

ID: 342143

File Name: ray_CVE-2025-62593.nasl

Version: 1.1

Type: Remote

Published: 9/1/2026

Updated: 9/1/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

Percentile: 99.71

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-62593

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.4

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Vulnerability Information

CPE: cpe:/a:anyscale:ray

Required KB Items: installed_sw/Ray Dashboard

Patch Publication Date: 11/26/2025

Vulnerability Publication Date: 11/26/2025

Reference Information

CVE: CVE-2025-62593