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9.4 Critical Exploited

CVE-2025-62593 Ray-Project Ray Code Injection Vulnerability

Active exploitation observed

· CISA KEV catalogue
Required action Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Ransomware campaigns Not observed so far
Weakness CWE-94, CWE-352

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.

Affected products and versions

Product Affected versions Fixed in
ray 2.52 earliest → < 2.52.0 2.52.0

References

Timeline

  1. Published
  2. Added to the KEV catalogue
  3. Last modified

Other CVEs of ray

The 4 CVEs of ray →
CVE-2026-41486 Ray is an AI compute engine 8.9 High CVE-2026-32981 A path traversal vulnerability was identified in Ray Dashboard (default port 8265) in Ray versions prior to 2.8.1 8.7 High CVE-2026-27482 Ray is an AI compute engine 5.9 Medium
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