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CVE-2026-40897

mathjs: Math.js: Arbitrary code execution via expression parser

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Severity

Important

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · April 25, 2026

Updated · November 5, 2026

Description

A flaw was found in mathjs, an extensive math library for JavaScript and Node.js. This vulnerability allows a remote attacker to execute arbitrary JavaScript code by evaluating malicious expressions through the mathjs expression parser. This can lead to a complete compromise of the affected application.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-917 · Improper Neutralization of Special Elements used in an Expression Language Statement