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CVE-2026-41507 — Vulnerability in math-codegen — CVE Details

CRITICAL

Remote Code Execution (RCE) via String Literal Injection into math-codegen

Published April 17, 2026Updated May 12, 2026Source: osv

Summary

### Impact String literal content passed to `cg.parse()` is injected verbatim into a `new Function()` body without sanitization. This allows an attacker to execute arbitrary system commands when user-controlled input reaches the parser. Any application exposing a math evaluation endpoint where user input flows into `cg.parse()` is vulnerable to full RCE. ### Patches The vulnerability is addressed by using `JSON.stringify()` on string literal values in `lib/node/ConstantNode.js` to ensure they are treated as data rather than code. Users should upgrade to version 0.4.3 or later. ### Workarounds Avoid passing un-sanitized user input to the parser or manually escape string literals in the input.

Advisory Timeline

  • First published April 17, 2026 (178 days ago).
  • Last revised May 12, 2026 — 25 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update math-codegen to 0.4.3 or later
npm install math-codegen@0.4.3

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
math-codegen
npm
All versions0.4.3

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Frequently Asked Questions

What is CVE-2026-41507?
Remote Code Execution (RCE) via String Literal Injection into math-codegen This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2026-41507?
CVE-2026-41507 affects math-codegen. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-41507 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-p6x5-p4xf-cc4r

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