CVE-2025-62593 KEV
Patch first
On CISA KEV — known exploited in the wild, due 2026-08-20.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 62.46% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | yes — remediate by 2026-08-20 |
| Public exploit | none known |
| Published | 2025-11-26 |
| Last modified | 2026-08-18 |
CISA KEV
| Name | Ray-Project Ray Code Injection Vulnerability |
|---|---|
| Added | 2026-08-17 |
| Due | 2026-08-20 |
| Vendor / product | Ray-Project / Ray |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| anyscale | ray |
References
- https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09
- https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v
- https://www.bitsight.com/blog/rondodox-botnet-infrastructure-analysis
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-62593
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