Moderate severityNVD Advisory· Published Feb 21, 2026· Updated Feb 24, 2026
Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)
CVE-2026-27482
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
rayPyPI | < 2.54.0 | 2.54.0 |
Affected products
7- osv-coords6 versionspkg:apk/chainguard/airflow-3pkg:apk/chainguard/py3.10-vllm-cuda-12.4pkg:apk/chainguard/py3.12-vllm-cuda-12.4pkg:apk/chainguard/tritonserver-backend-vllm-cuda-12.9pkg:apk/wolfi/airflow-3pkg:pypi/ray
< 3.2.0-r0+ 5 more
- (no CPE)range: < 3.2.0-r0
- (no CPE)range: < 0.16.0-r1
- (no CPE)range: < 0.16.0-r1
- (no CPE)range: < 25.9.0_git20251112-r7
- (no CPE)range: < 3.2.0-r0
- (no CPE)range: < 2.54.0
- Range: < 2.54.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-q5fh-2hc8-f6rqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-27482ghsaADVISORY
- github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4ghsax_refsource_MISCWEB
- github.com/ray-project/ray/pull/60526ghsax_refsource_MISCWEB
- github.com/ray-project/ray/releases/tag/ray-2.54.0ghsax_refsource_MISCWEB
- github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rqghsax_refsource_CONFIRMWEB
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