josdejong/mathjs · Security
Unsafe object property setter in mathjs
- GHSA ID
- GHSA-29qv-4j9f-fjw5
- CVE ID
- CVE-2026-40897
- Severity
- high
- Published
- Updated
- CVSS
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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).
CWEs
- CWE-915 · Improperly Controlled Modification of Dynamically-Determined Object Attributes
References
- https://github.com/josdejong/mathjs/security/advisories/GHSA-29qv-4j9f-fjw5 ↗
- https://github.com/josdejong/mathjs/pull/3656 ↗
- https://github.com/josdejong/mathjs/commit/513ab2a0e01004af91b31aada68fae8a821326ad ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-40897 ↗
- https://github.com/advisories/GHSA-29qv-4j9f-fjw5 ↗