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Vulnerability Intelligence

CVE-2025-62593

CriticalExploitedPublic exploit

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

Published Nov 26, 2025 · Updated Oct 3, 2026 · Also known as GHSA-q279-jhrf-cc6v, PYSEC-2026-520

Key Facts

Patch immediately
  • CVE-2025-62593 is a critical-severity vulnerability (CVSS 9.4 v4) affecting Ray (Anyscale), airflow-3 (chainguard), py3-vllm-cuda-12.4 (chainguard) and 22 more products.
  • It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 11, 2026. Public exploit code is available.
  • EPSS estimates a 62% probability of exploitation in the next 30 days.
  • Fixed versions are available, including airflow-2 2.11.2-r0, airflow-3 3.2.0-r0, Ray 2.52.0.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v4

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

EPSS (30-day exploit likelihood)

62%

Higher than 99.1% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2025-62593 brief as a PDF

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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.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVAug 17, 2026Aug 20, 2026Not reported
Industry KEV feedMar 11, 2026Aug 20, 2026Not reported
CIRCL KEVAug 18, 2026Aug 21, 2026Not reported
ENISA EUVDAug 17, 2026n/aNot reported

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.

Affected Products

42 affected entries in total
ProductAffected versionsFixed in
RayAnyscale>= < 2.52.02.52.0
airflow-3chainguardSee advisory3.2.0-r0
py3-vllm-cuda-12.4chainguardSee advisory0.11.2-r1
tritonserver-backend-vllm-cuda-12.9chainguardSee advisory25.9.0_git20251112-r1
airflow-2minimosSee advisory2.11.2-r0
20 more affected products in the full CVE brief

Patched Releases

airflow-2

2.11.2-r0

airflow-3

3.2.0-r0

Ray

2.52.0

py3-vllm-cuda-12.4

0.11.2-r1

rhaiis/model-opt-cuda-rhel9:3.2.2

1764871796

rhaiis/vllm-cuda-rhel9:3.2.2

1765379088

rhaiis/vllm-cuda-rhel9:3.2.5

1765552580

rhaiis/vllm-rocm-rhel9:3.2.2

1765379049

rhoai/odh-kserve-agent-rhel9:v2.25.1

1765613316

rhoai/odh-kserve-controller-rhel9:v2.25.1

1765613316

rhoai/odh-kserve-router-rhel9:v2.25.1

1765613316

rhoai/odh-kserve-storage-initializer-rhel9:v2.25.1

1765326513

tritonserver-backend-vllm-cuda-12.9

25.9.0_git20251112-r1

Timeline

  1. Publicly disclosed

    Nov 26, 2025

  2. Added to Industry KEV feed

    Mar 11, 2026

  3. Added to CISA KEV

    Aug 17, 2026

  4. Added to ENISA EUVD

    Aug 17, 2026

  5. Added to CIRCL KEV

    Aug 18, 2026

  6. Last updated

    Oct 3, 2026

Weakness Type

  • CWE-94 Improper Control of Generation of Code ('Code Injection')
  • CWE-352 Cross-Site Request Forgery (CSRF)

References

15 more references in the full CVE brief

FAQ

Common Questions.

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