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harden: the manifest declares handlebars at ^4 in package.json - #128

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anupamme:fix-repo-sendemail-handlebars-prototype-pollution
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anupamme wants to merge 1 commit into
dwyl:masterfrom
anupamme:fix-repo-sendemail-handlebars-prototype-pollution

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Summary

Harden input handling in package.json (flagged by multi_agent_ai).

Vulnerability

Field Value
ID V-001
Severity HIGH
Scanner multi_agent_ai
Rule V-001
File package.json:1
Assessment Defensive hardening

Description: The manifest declares handlebars at ^4.7.6. Version 4.7.6 is affected by publicly documented prototype-pollution and server-side template injection issues (CVE-2021-23369, CVE-2021-23383) that can lead to remote code execution when an attacker can influence template source or the compile-time options. The caret range means a fresh install will normally resolve to a patched 4.7.7+ release, and Phase 3 review found no code path that compiles attacker-supplied template strings - which is why confidence is medium rather than high. However, without a committed lockfile the exact installed version cannot be proven safe, and any future refactor that renders user-controlled templates would make this directly exploitable.

Threat Model Context

This is a Node.js library - vulnerabilities affect downstream consumers who use this package.

Changes

  • package.json

Behavior Preservation

This change touches only dependency manifest (package.json); no source file in the repository is modified.


This patch removes an exploit primitive — a code pattern that, while not independently exploitable today, could be chained with other weaknesses by automated exploit-development tooling. Proactive removal of such primitives raises the bar against increasingly capable automated attack tools.


Automated security fix by OrbisAI Security

Automated security fix generated by OrbisAI Security
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