id: PYSEC-2026-2271
published: "2026-02-21T10:16:12.380Z"
modified: "2026-07-13T05:51:14.838482Z"
aliases:
- CVE-2026-27482
- GHSA-q5fh-2hc8-f6rq
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.
affected:
- package:
    name: ray
    ecosystem: PyPI
    purl: pkg:pypi/ray
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 2.54.0
  versions:
  - 0.1.1
  - 0.1.2
  - 0.2.0
  - 0.2.1
  - 0.2.2
  - 0.3.0
  - 0.3.1
  - 0.4.0
  - 0.5.0
  - 0.5.2
  - 0.5.3
  - 0.6.0
  - 0.6.1
  - 0.6.2
  - 0.6.3
  - 0.6.4
  - 0.6.5
  - 0.6.6
  - 0.7.0
  - 0.7.1
  - 0.7.2
  - 0.7.3
  - 0.7.4
  - 0.7.5
  - 0.7.6
  - 0.7.7
  - 0.8.0
  - 0.8.1
  - 0.8.2
  - 0.8.3
  - 0.8.4
  - 0.8.5
  - 0.8.6
  - 0.8.7
  - 1.0.0
  - 1.0.1
  - 1.1.0
  - 1.10.0
  - 1.11.0
  - 1.11.1
  - 1.12.0
  - 1.12.1
  - 1.13.0
  - 1.2.0
  - 1.3.0
  - 1.4.0
  - 1.4.1
  - 1.5.0
  - 1.5.1
  - 1.5.2
  - 1.6.0
  - 1.7.0
  - 1.7.1
  - 1.8.0
  - 1.9.0
  - 1.9.1
  - 1.9.2
  - 2.0.0
  - 2.0.1
  - 2.1.0
  - 2.10.0
  - 2.11.0
  - 2.12.0
  - 2.2.0
  - 2.20.0
  - 2.21.0
  - 2.22.0
  - 2.23.0
  - 2.24.0
  - 2.3.0
  - 2.3.0rc0
  - 2.3.1
  - 2.30.0
  - 2.31.0
  - 2.32.0
  - 2.32.0rc0
  - 2.33.0
  - 2.34.0
  - 2.35.0
  - 2.36.0
  - 2.36.1
  - 2.37.0
  - 2.38.0
  - 2.39.0
  - 2.4.0
  - 2.40.0
  - 2.41.0
  - 2.42.0
  - 2.42.1
  - 2.43.0
  - 2.44.0
  - 2.44.1
  - 2.45.0
  - 2.46.0
  - 2.47.0
  - 2.47.1
  - 2.48.0
  - 2.49.0
  - 2.49.1
  - 2.49.2
  - 2.5.0
  - 2.5.1
  - 2.50.0
  - 2.50.1
  - 2.51.0
  - 2.51.1
  - 2.51.2
  - 2.52.0
  - 2.52.1
  - 2.53.0
  - 2.6.0
  - 2.6.1
  - 2.6.2
  - 2.6.3
  - 2.7.0
  - 2.7.0rc0
  - 2.7.1
  - 2.7.2
  - 2.8.0
  - 2.8.1
  - 2.9.0
  - 2.9.1
  - 2.9.2
  - 2.9.3
  ecosystem_specific: {}
references:
- type: ADVISORY
  url: https://github.com/ray-project/ray/releases/tag/ray-2.54.0
- type: FIX
  url: https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4
- type: FIX
  url: https://github.com/ray-project/ray/pull/60526
- type: EVIDENCE
  url: https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H