CVE-2025-62593
Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack
- State
- Published
- Severity
- 9.4 Critical
- Published
- Nov 26, 2025
- Updated
- Oct 1, 2026
- Reserved
- Oct 16, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | 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 | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
rayray-project |
|
References
- https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v
- https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09
- https://www.bitsight.com/blog/rondodox-botnet-infrastructure-analysisthird-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-62593government-resource
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