Vulnerability in Anyscale Ray
CVE-2026-27482
Ray is an AI compute engine. In versions 2.53.0 and below, thedashboard HTTP server blocks browser-origin POST/PUT but does not cover DELETE, and key DELETE endpoints are unauthenticated by default. If the dashboard/agent is reachable (e.g., --dashboard-host=0.0.0.0), a web page via DNS rebinding or same-network access can issue DELETE requests that shut down Serve or delete jobs without user interaction. This is a drive-by availability impact. The fix for this vulnerability is to update to Ray 2.54.0 or higher.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Anyscale Ray
- Ray-Project Ray — versions < 2.54.0
Weakness classification (CWE)
References
- github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq (Exploit, Vendor Advisory)
- github.com/ray-project/ray/pull/60526 (Patch, Issue Tracking)
- github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4 (Patch)
- github.com/ray-project/ray/releases/tag/ray-2.54.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-27482?
- CVE-2026-27482 is a medium-severity vulnerability in Anyscale Ray, classified under CWE-396. CVSS score: 5.9/10. Published 2026-02-21.
- How severe is CVE-2026-27482?
- Medium severity. CVSS v3 base score is 5.9 out of 10.