How severe is CVE-2026-41139?

CVE-2026-41139 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-41139 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41139?

CVE-2026-41139 affects Mathjs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41139?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-41139 have an EU (EUVD) identifier?

Yes. CVE-2026-41139 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28310.

When was CVE-2026-41139 published?

CVE-2026-41139 was published on 2026-05-07 and last updated on 2026-06-30.

CVE-2026-41139

CVE-2026-41139 is a high-severity vulnerability in Mathjs with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-915.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28310
Weakness: CWE-915
Affected product: Mathjs
Published: 2026-05-07
Last modified: 2026-06-30

Description

Math.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 via the expression parser of mathjs. This issue has been patched in version 15.2.0.

Frequently asked questions

What is CVE-2026-41139?: Math.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 via the expression parser of mathjs. This issue has been patched in version 15.2.0.
How severe is CVE-2026-41139?: CVE-2026-41139 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-41139 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41139?: CVE-2026-41139 affects Mathjs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41139?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-41139 have an EU (EUVD) identifier?: Yes. CVE-2026-41139 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28310.
When was CVE-2026-41139 published?: CVE-2026-41139 was published on 2026-05-07 and last updated on 2026-06-30.

References

Affected products (1)

cpe:2.3:a:mathjs:mathjs:*:*:*:*:*:node.js:*:*

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