OCTOBER 8, 2026
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Case File

CVE-2026-55094

HIGH · CVSS 8.7 EPSS 0.42% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-30 · Last synced 2026-10-08

CyberRota Analysis

AI-Generated

Taskcluster deployments prior to version 100.3.0 are susceptible to unauthenticated remote code execution due to a vulnerability in the GraphQL endpoint, which improperly handles filter arguments through the sift library. This flaw poses a significant risk, allowing attackers to execute arbitrary code without authentication. Organizations utilizing Taskcluster for CI/CD processes should prioritize upgrading to the patched version to mitigate this high-severity risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55094
Severity
HIGH
CVSS
8.7
EPSS
0.42%

Original NVD Description

Taskcluster is the task execution framework that supports Mozilla's continuous integration and release processes. Prior to version 100.3.0, Taskcluster is vulnerable to unauthenticated RCE on Taskcluster deployments with an anonymous role that exposes the GraphQL endpoint and parses filter arguments using the sift library. This issue has been patched in version 100.3.0.