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CVE-2025-62593

CriticalCVSS 9.4 / 10
Published Nov 26, 2025·Last modified Apr 12, 2026
Affected Components(20)
ray-project/ray
ray-0.1.0
ray-project/ray
ray-0.6.1
ray-project/ray
ray-0.5.3
1 / 7
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.

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Risk Scores
Base Score
9.4

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights.

Threat Intelligence
9.4

Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.

EPSS
62.46%

The exploit probability is very high. The vulnerability is very likely to be exploited in the next 30 days.

Exploit
Attacked

This vulnerability is actively being exploited in the wild. Please take immediate action to mitigate the risk.

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