Ray is an AI compute engine. Prior to version 2.52.0, developers working with Ray as a development tool can be exploited via a critical RCE vulnerability exploitable via Firefox and Safari. This vulnerability is due to an insufficient guard against browser-based attacks, as the current defense uses the User-Agent header starting with the string "Mozilla" as a defense mechanism. This defense is insufficient as the fetch specification allows the User-Agent header to be modified. Combined with a DNS rebinding attack against the browser, and this vulnerability is exploitable against a developer running Ray who inadvertently visits a malicious website, or is served a malicious advertisement (malvertising). This issue has been patched in version 2.52.0.
History

Fri, 28 Nov 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 27 Nov 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Ray Project
Ray Project ray
Vendors & Products Ray Project
Ray Project ray

Wed, 26 Nov 2025 22:45:00 +0000

Type Values Removed Values Added
Description Ray is an AI compute engine. Prior to version 2.52.0, developers working with Ray as a development tool can be exploited via a critical RCE vulnerability exploitable via Firefox and Safari. This vulnerability is due to an insufficient guard against browser-based attacks, as the current defense uses the User-Agent header starting with the string "Mozilla" as a defense mechanism. This defense is insufficient as the fetch specification allows the User-Agent header to be modified. Combined with a DNS rebinding attack against the browser, and this vulnerability is exploitable against a developer running Ray who inadvertently visits a malicious website, or is served a malicious advertisement (malvertising). This issue has been patched in version 2.52.0.
Title Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack
Weaknesses CWE-352
CWE-94
References
Metrics cvssV4_0

{'score': 9.4, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2025-11-26T22:28:28.577Z

Updated: 2025-11-28T18:22:23.915Z

Reserved: 2025-10-16T19:24:37.266Z

Link: CVE-2025-62593

cve-icon Vulnrichment

Updated: 2025-11-28T18:22:05.838Z

cve-icon NVD

Status : Received

Published: 2025-11-26T23:15:47.927

Modified: 2025-11-26T23:15:47.927

Link: CVE-2025-62593

cve-icon Redhat

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