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Fencer Vulns
high 8.8

CVE-2025-62593 kev in the critical feed json

Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack

published 2025-11-26 11 mo ago modified 2026-10-19 21 d ago also EUVD-2025-199754 , GHSA-q279-jhrf-cc6v , PYSEC-2026-520

cvss
8.8
version 3.1, NVD
cisa kev
Exploited
added 2026-08-17
epss
60.2%
EPSS 60.2% chance of exploitation in 30 days, percentile 99.1%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

cisa required action Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

  • pypi ray 2.52.0
  • anyscale ray 2.52.0
  • ray_project ray 2.52.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-62593 updated cvss 8.8

ray: Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack

  • Red Hat OpenShift AI (RHOAI) rhoai/odh-vllm-cuda-rhel9
    affected: workaround, no fix available
  • Red Hat AI Inference Server 3.2 rhaiis 1772160593, rhaiis 1772160625, rhaiis 3.2.2-1764871796, rhaiis 3.2.2-1765379049, rhaiis 3.2.2-1765379088, rhaiis 3.2.5-1765552580, +1 more
    fixed: vendor fix RHSA-2025:23080
  • Red Hat OpenShift AI 2.25 rhoai v2.25.1-1765326513, rhoai v2.25.1-1765613316
    fixed: vendor fix RHSA-2025:23531
  • Red Hat OpenShift AI 3.2 rhoai 1768223146, rhoai 1768223412, rhoai 1768223469, rhoai 1768223478, rhoai 1768224066, rhoai 1768224395, +5 more
    fixed: vendor fix RHSA-2026:1027
  • Red Hat OpenShift AI 3.3 rhoai 1770956034
    fixed: vendor fix RHSA-2026:3713
  • Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-aws-cuda-rhel9, rhelai3/bootc-gcp-cuda-rhel9, rhelai3/bootc-azure-cuda-rhel9 Red Hat OpenShift AI (RHOAI) rhoai/odh-model-registry-rhel9 Red Hat OpenShift AI 2.25 rhoai 0.0-1763988459, rhoai v2.25.1-1764757768, rhoai v2.25.1-1764757769, rhoai v2.25.1-1764757770, rhoai v2.25.1-1764757772, rhoai v2.25.1-1764757773, +34 more Red Hat OpenShift AI 3.2 rhoai 1768212802, rhoai 1768222528, rhoai 1768222546, rhoai 1768222559, rhoai 1768222567, rhoai 1768222575, +60 more Red Hat OpenShift AI 3.3 rhoai 1769162595, rhoai 1769436305, rhoai 1769519975, rhoai 1770277795, rhoai 1770735854, rhoai 1770754585, +71 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA SSVC: exploitation active
  4. CISA patch deadline

Known exploited

Added
2 mo ago
Patch by
2026-08-20 (2 mo ago)
Ransomware
Not known
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Vendor, product
Ray-Project, Ray
CISA name
Ray-Project Ray Code Injection Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
2 mo ago

Exploit prediction

60.15% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Ray < 2.52.0 - Remote Code Execution nuclei detection template
  • github.com https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 9.4 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
CNA 4.0 9.4 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi ray
<2.52.0
2.52.0

Affected products

  • ray-project ray

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.