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Vulnerability record · CVE-2020-7743 · published 13 October 2020

CVE-2020-7743: Mathjs prototype pollution vulnerability

Mathjs · Mathjs

The package mathjs before 7.5.1 are vulnerable to Prototype Pollution via the deepExtend function that runs upon configuration updates.

7.3 CVSS 3.1 High EPSS 3.9% · top 10.0% CWE-1321 · Prototype pollution
7.3CVSS 3.1 base score, v2 7.5
3.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 8 tagged exploit
17 Jun 2026Last modified by NVD

Description

The package mathjs before 7.5.1 are vulnerable to Prototype Pollution via the deepExtend function that runs upon configuration updates.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/josdejong/mathjs/blob/develop/src/utils/object.js%23L82 Broken LinkThird Party Advisory
https://github.com/josdejong/mathjs/commit/ecb80514e80bce4e6ec7e71db8ff79954f07c57e PatchThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1017113 ExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1017112 ExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1017111 ExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JS-MATHJS-1016401 ExploitMitigationThird Party Advisory
https://github.com/josdejong/mathjs/blob/develop/src/utils/object.js%23L82 Broken LinkThird Party Advisory
https://github.com/josdejong/mathjs/commit/ecb80514e80bce4e6ec7e71db8ff79954f07c57e PatchThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1017113 ExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1017112 ExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1017111 ExploitMitigationThird Party Advisory
https://snyk.io/vuln/SNYK-JS-MATHJS-1016401 ExploitMitigationThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2026-41139Mathjs mass assignment vulnerabilityMath.js is an extensive math library for JavaScript and Node.js. From version 13.1.0 to before version 15.2.0, arbitrary JavaScript can be executed v…EPSS 0.80%8.8CVE-2026-40897Mathjs mass assignment vulnerabilityMath.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…EPSS 0.76%8.6CVE-2026-34621Adobe Acrobat Reader prototype pollution leads to code executionAdobe Acrobat and Reader (versions 24.001.30356, 26.001.21367 and earlier) are affected by prototype pollution (CWE-1321) that can result in arbitrar…KEVEPSS 2.2%analysed

Source: NIST National Vulnerability Database (record CVE-2020-7743), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.