Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') Affecting trigger-dev package, versions <4.5.11-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-TRIGGERDEV-20542051
  • published7 Oct 2026
  • disclosed2 Oct 2026

Introduced: 2 Oct 2026

NewCVE-2026-104848  (opens in a new tab)
CWE-1321  (opens in a new tab)

How to fix?

Upgrade Minimos:latest trigger-dev to version 4.5.11-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream trigger-dev package and not the trigger-dev package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.1, Tinypool constructs ThreadPool.options from a normal options object and reads the execArgv and env worker options in dist/index.js, allowing values inherited from a polluted Object.prototype to be copied into own properties and passed to worker_threads.Worker. An attacker who can first pollute either property can cause each newly spawned worker to load attacker-selected JavaScript through command-line preload arguments or NODE_OPTIONS, resulting in code execution with the host process's privileges and possible access to CI secrets, signing material, or build artifacts. This issue is fixed in version 2.1.1.

CVSS Base Scores

version 3.1