{"id":"CVE-2026-27482","published":"2026-02-21T09:18:26Z","modified":"2026-02-24T18:52:03Z","title":"Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)","vendor":"ray-project","product":"ray","tier":"tail","description":{"text":"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.","provenance":"source","from":"CVE.org"},"cvss":{"score":5.9,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00307,"percentile":0.23438,"provenance":"source"},"cwes":[{"id":"CWE-396","name":"Declaration of Catch for Generic Exception"}],"references":[{"url":"https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ray-project/ray/pull/60526","tags":["x_refsource_MISC"]},{"url":"https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4","tags":["x_refsource_MISC"]},{"url":"https://github.com/ray-project/ray/releases/tag/ray-2.54.0","tags":["x_refsource_MISC"]}],"priority":{"score":8.8,"factors":[{"name":"EPSS percentile","points":4.69},{"name":"CVSS severity","points":4.13}]},"vendorSlug":"ray-project","affectedVersions":[{"vendor":"ray-project","product":"ray","versions":["< 2.54.0"]}],"affected":[{"ecosystem":"PyPI","package":"ray","vulnerableRanges":["<2.54.0"],"patched":["2.54.0"],"from":["GHSA-q5fh-2hc8-f6rq","PYSEC-2026-2271"],"provenance":"source"}],"euvd":{"id":"EUVD-2026-7716","exploited":false,"provenance":"source"},"lineage":{"packageHistory":[{"cve":"CVE-2026-32981","published":"2026-03-17","fixed":"2.8.1","kev":false},{"cve":"CVE-2025-1979","published":"2025-03-06","fixed":"2.43.0","kev":false},{"cve":"CVE-2025-62593","published":"2025-11-26","fixed":"2.52.0","kev":true,"link":{"from":"CVE-2025-62593","to":"CVE-2026-27482","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"PyPI:ray","fromFixed":"2.52.0","toFixed":"2.54.0","daysApart":87}]}},{"cve":"CVE-2026-27482","published":"2026-02-21","fixed":"2.54.0","kev":false},{"cve":"CVE-2026-41486","published":"2026-05-08","fixed":"2.55.0","kev":false,"link":{"from":"CVE-2026-27482","to":"CVE-2026-41486","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"PyPI:ray","fromFixed":"2.54.0","toFixed":"2.55.0","daysApart":76}]}},{"cve":"CVE-2026-57516","published":"2026-07-01","fixed":"2.56.0","kev":false}],"package":"PyPI:ray"}}