What is CVE-2026-27482?

CVE-2026-27482 is a medium-severity vulnerability in Ray-project Ray, classified under CWE-396. CVSS score: 5.9/10. Published 2026-02-21.

How severe is CVE-2026-27482?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Ray-project Ray

CVE-2026-27482

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…

EPSS: 0.001 (19.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H.

Affected products

Ray-project Ray — versions < 2.54.0

Weakness classification (CWE)

CWE-396

References

https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq (x_refsource_CONFIRM)
https://github.com/ray-project/ray/pull/60526 (x_refsource_MISC)
https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4 (x_refsource_MISC)
https://github.com/ray-project/ray/releases/tag/ray-2.54.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-27482?: CVE-2026-27482 is a medium-severity vulnerability in Ray-project Ray, classified under CWE-396. CVSS score: 5.9/10. Published 2026-02-21.
How severe is CVE-2026-27482?: Medium severity. CVSS v3 base score is 5.9 out of 10.