CVE-2025-62593
CWE-94
97.4
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
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.
Source: NVD
Signals
- CVSS
- 8.8
- High · v3.1
- EPSS
- 62.45%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since Aug 2026
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-94
- Published
- 26 Nov 2025
- Last modified 1 Oct 2026
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 7 Oct 2026, 05:16 UK time