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CVE-2025-62593

Ray-Project Ray Code Injection

8.8 HIGHActively exploited (CISA KEV)Public exploitEPSS 62.5%
  1. Published26 Nov 2025
  2. Added to CISA KEV17 Aug 2026
  3. Remediation due20 Aug 2026
Actively exploited (CISA KEV)

Ray-Project Ray contains a code injection vulnerability that could allow remote code execution. Developers using Ray as a development tool may be exposed to this vulnerability exploitable through Firefox and Safari.

Added to KEV: 17 Aug 2026Federal remediation due: 20 Aug 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Anyscale Ray< 2.52.0

Remediation

Fixed in
Anyscale Ray≥ 2.52.0

References

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Frequently asked

Is CVE-2025-62593 being actively exploited?

Yes. CVE-2025-62593 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 17 Aug 2026.

How severe is CVE-2025-62593?

CVE-2025-62593 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 62.5% probability of exploitation.

Which products are affected by CVE-2025-62593?

Affected products include Anyscale Ray.

How do I fix CVE-2025-62593?

Upgrade affected software to a fixed version, for example Anyscale Ray 2.52.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-62593 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.