CVE-2026-40897
Math.js: Unsafe object property setter in mathjs
HIGH 8.8EPSS 0.8%
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.
- Affected
- josdejong · mathjs
- CVSS v3.1 CNA
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.76% chance of exploitation in the next 30 days, 55th percentile
- Published
- 2026-04-24
- Updated
- 2026-07-15
Proof-of-concept exploits (2)
- EQSTLab/CVE-2026-408972★ · 2026-08-19
- yym8538/CVE-2026-408971★ · 2026-08-21
Security advisories
- josdejong/mathjs/security/advisories/GHSA-29qv-4j9f-fjw5
- advisories/GHSA-29qv-4j9f-fjw5
- josdejong/mathjs/pull/3656