Medium 5.9Published Feb 21, 2026

CVE-2026-27482Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)

Updated under an hour ago (Oct 26, 2026, 12:50 AM ET)

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It affects ray-project ray and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for ray-project ray

Exploited in the last 30 days

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.

CVSS: 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
Weakness (CWE): CWE-396
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ray-project ray ray_project:ray (from the name)	before 2.54.0	CNA record
anyscale ray anyscale:ray	before 2.54.0	NVD

References

https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rqx-refsource-confirm, exploit, vendor-advisory
https://github.com/ray-project/ray/pull/60526x-refsource-misc, issue-tracking, patch
https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4x-refsource-misc, patch
https://github.com/ray-project/ray/releases/tag/ray-2.54.0x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.