{"id":"CVE-2026-27482","aliases":["GHSA-q5fh-2hc8-f6rq","PYSEC-2026-2271"],"url":"https://o3.security/vulnerability/CVE-2026-27482","summary":"Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)","details":"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":"2026-02-21T09:18:26.027Z","modified":"2026-08-12T03:51:43.625022290Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H"},"epss":{"score":0.00256,"percentile":0.16793,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"ray","fixedVersion":"2.54.0"}],"fix":{"url":"https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4","label":"ray-project/ray@0fda8b8"},"references":[{"type":"WEB","url":"https://github.com/ray-project/ray/releases/tag/ray-2.54.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27482.json"},{"type":"ADVISORY","url":"https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27482"},{"type":"FIX","url":"https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4"},{"type":"FIX","url":"https://github.com/ray-project/ray/pull/60526"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:43.625022290Z"}}