Critical 9.8Published May 8, 2026

CVE-2026-41507Remote Code Execution (RCE) via String Literal Injection into math-codegen

Updated under an hour ago (Oct 27, 2026, 4:10 AM ET)

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It affects mauriciopoppe math-codegen and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for mauriciopoppe math-codegen

Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

mauriciopoppe math-codegen mauriciopoppe:math_codegen (from the name)	before 0.4.3	CNA record
mauriciopoppe math-codegen mauriciopoppe:math-codegen	before 0.4.3	NVD

References

References

https://github.com/mauriciopoppe/math-codegen/security/advisories/GHSA-p6x5-p4xf-cc4r	x-refsource-confirm, vendor-advisory
https://github.com/mauriciopoppe/math-codegen/pull/11	x-refsource-misc, issue-tracking
https://github.com/mauriciopoppe/math-codegen/commit/4bb52d3030683362b3559ee8dd91350555a05f6b	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.