Is CVE-2026-40897 actively exploited?

No active exploitation of CVE-2026-40897 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40897 be exploited remotely?

Yes. CVE-2026-40897 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40897?

CVE-2026-40897 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-40897

CWE-915Published: April 24, 2026· Updated: Apr 27, 2026

8.8

CVSS v3.1

EPSS:0.08%probability of exploitation in 30 daysPercentile:23.9th

Official Description

Math.js is an extensive math library for JavaScript and Node.js. From 13.1.1 to before 15.2.0, a vulnerability allowed executing arbitrary JavaScript via the expression parser of mathjs. You can be affected when you have an application where users can evaluate arbitrary expressions using the mathjs expression parser. This vulnerability is fixed in 15.2.0.

NVD Source

Technical Analysis

CVE-2026-40897 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.