Paper/Archive/CVE-2025-62593

CVE-2025-62593

ray-project ray — Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack

KEV · due 20 Aug EPSS 60%public exploit SSVC act CVSS 9.4

CVSS 9.4 (CNA)9.4 / 10 × 3028.2 In CISA KEV+3030.0 EPSS percentile 99.1.991 × 2019.8 Exploit: SSVC active+1010.0 SSVC exploitation: active+1010.0

Description · from the CVE record

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

ProductAffectedFixed inSource

ray< 2.52.0–CNA

Scores by source

GitHub_M (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

refgithub.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v refgithub.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09 writeupbitsight.com/blog/rondodox-botnet-infrastructure-analysis refcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-62593 kevcisa.gov/known-exploited-vulnerabilities-catalog