Main Vulnerability Database Vulnerabilities #VU123120

Missing Authentication for Critical Function in Ray - CVE-2026-27482

Published: February 23, 2026

Vulnerability identifier: #VU123120

CSH Severity: Medium

CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-27482

CWE-ID: CWE-306

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to missing authentication for critical function within dashboard DELETE endpoints. A remote attacker can perform a denial of service (DoS) attack.

Affected software

Ray

How to mitigate CVE-2026-27482

Install updates from vendor's website.

Ray - update to 2.54.0

Links to Public Exploits and PoC-codes

Exploit #12430 - Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion) (February 23, 2026)

External References

https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq

Related Security Bulletins

Denial of service in Ray