High

Unsafe object property setter in mathjs

  • Disclosed: 16.04.2026
  • Updated: 11.10.2026 10:22

Impact

This security 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.

Patches

The issue was introduced in mathjs v13.1.1, and patched in mathjs v15.2.0.

Workarounds

There is no workaround without upgrading to v15.2.0.

References

You can find out more via the commit fixing this issue: https://github.com/josdejong/mathjs/commit/513ab2a0e01004af91b31aada68fae8a821326ad (part of PR https://github.com/josdejong/mathjs/pull/3656).

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package mathjs >= 13.1.1, < 15.2.0 15.2.0

References

CVSS score 8.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-915
Platform
npm
Package
mathjs
Disclosed
16.04.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-29qv-4j9f-fjw5 - CC BY 4.0

Vulnerability history: mathjs

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
5
First → latest
12.2017 04.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 3

Disclosures per year

  1. 2017: 2
  2. 2018: 0
  3. 2019: 0
  4. 2020: 0
  5. 2021: 1
  6. 2022: 0
  7. 2023: 0
  8. 2024: 0
  9. 2025: 0
  10. 2026: 2
  1. Unsafe object property setter in mathjs this entry
    High · 8.8 CVE-2026-40897 >= 13.1.1, < 15.2.0 15.2.0
  2. High · 7.3 CVE-2020-7743 < 7.5.1 7.5.1
  3. Critical · 9.8 CVE-2017-1001003 < 3.17.0 3.17.0
  4. Critical · 9.8 CVE-2017-1001002 < 3.17.0 3.17.0

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