CVE-2026-41507 | math-codegen generates code from mathematical expressions. P… | CVSS 9.8 CRITICAL

Description

math-codegen generates code from mathematical expressions. Prior to version 0.4.3, 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. This issue has been patched in version 0.4.3.

Metadata

CVE ID: CVE-2026-41507
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-04-20 18:18 UTC
Published: 2026-05-08 13:49 UTC
Last updated: 2026-05-08 14:20 UTC
Primary CWE: CWE-94
CWE-94: Improper Control of Generation of Code ('Code Inject…
Vendor / Product: mauriciopoppe / math-codegen
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
mauriciopoppe	math-codegen	—	< 0.4.3

Weakness (CWE)

CWE	Source	Description
CWE-94	cna	CWE-94: Improper Control of Generation of Code ('Code Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (3)

https://github.com/mauriciopoppe/math-codegen/security/advisories/GHSA-p6x5-p4xf-cc4r https://github.com/mauriciopoppe/math-codegen/security/advisories/GHSA-p6x5-p4xf-cc4r
https://github.com/mauriciopoppe/math-codegen/pull/11 https://github.com/mauriciopoppe/math-codegen/pull/11
https://github.com/mauriciopoppe/math-codegen/commit/4bb52d3030683362b3559ee8dd91350555a05f6b https://github.com/mauriciopoppe/math-codegen/commit/4bb52d3030683362b3559ee8dd91350555a05f6b