CVE-2026-27482
Ray: Dashboard DELETE endpoints allow unauthenticated browser-triggered DoS (Serve shutdown / job deletion)
Description
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.
INFO
Published Date :
Feb. 21, 2026, 10:16 a.m.
Last Modified :
March 4, 2026, 6:59 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Ray to version 2.54.0 or higher.
- Restrict access to the dashboard and agent.
- Review authentication for DELETE endpoints.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27482.
| URL | Resource |
|---|---|
| https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4 | Patch |
| https://github.com/ray-project/ray/pull/60526 | Issue Tracking Patch |
| https://github.com/ray-project/ray/releases/tag/ray-2.54.0 | Product Release Notes |
| https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27482 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27482
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27482 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-27482 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
Mar. 04, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H -
Initial Analysis by [email protected]
Feb. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H Added CPE Configuration OR *cpe:2.3:a:anyscale:ray:*:*:*:*:*:*:*:* versions up to (excluding) 2.54.0 Added Reference Type GitHub, Inc.: https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/ray-project/ray/pull/60526 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/ray-project/ray/releases/tag/ray-2.54.0 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Feb. 21, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H Added CWE CWE-396 Added Reference https://github.com/ray-project/ray/commit/0fda8b824cdc9dc6edd763bb28dfd7d1cc9b02a4 Added Reference https://github.com/ray-project/ray/pull/60526 Added Reference https://github.com/ray-project/ray/releases/tag/ray-2.54.0 Added Reference https://github.com/ray-project/ray/security/advisories/GHSA-q5fh-2hc8-f6rq