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CVE-2026-41139 — Vulnerability in mathjs — CVE Details

HIGH

mathjs Allows Improperly Controlled Modification of Dynamically-Determined Object Attributes

Published April 10, 2026Updated September 10, 2026Source: osv

Summary

### 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 `v13.1.0`, 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/24d5ee7e25e85d49619b09122f055db4139bc057 (part of PR https://github.com/josdejong/mathjs/pull/3656).

Advisory Timeline

  • First published April 10, 2026 (185 days ago).
  • Last revised September 10, 2026 — 152 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update mathjs to 15.2.0 or later
npm install mathjs@15.2.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: npm (1).

PackageEcosystemAffectedFixed In
mathjs
npm
All versions15.2.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-41139?
mathjs Allows Improperly Controlled Modification of Dynamically-Determined Object Attributes This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2026-41139?
CVE-2026-41139 affects mathjs. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-41139 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-jvff-x2qm-6286
GHSA-5v89-rwgr-qj6g

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