CVE-2025-62593: ray · Code Injection
Affects raySource CVE Database V5
Exploited in the wild · KEV due 20 Aug 2026 · public detection template (Nuclei) · 62% EPSS : upgrade to 2.52.0 now.
Data as of 26 Oct 2026, 10:12 UTC
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else.
- EPSS
- 62.4% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.52.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 26 Nov 2025
Detectable: evidence found.
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 264 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by GitHub, Inc.
, 41 days before disclosure
CVE published
on cve.org
, t = 0
In Threat Radar
record ingested
, 12 minutes after disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed
, 264 days after disclosure
KEV remediation due
US federal deadline
, 267 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade ray and ray-project/ray to 2.52.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ray-projectray | Affected
| Fixed in
|
PyPIray-project/raypkg:pypi/ray-project/rayOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
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.
References
- github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v (opens in a new tab)
- github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09 (opens in a new tab)
- bitsight.com/blog/rondodox-botnet-infrastructure-analysis (opens in a new tab)
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-62593 (opens in a new tab)