SB2026041115 - Multiple vulnerabilities in Mathjs

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improperly Controlled Modification of Dynamically-Determined Object Attributes (CVE-ID: N/A)

CWE-ID: CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary JavaScript.

The vulnerability exists due to improperly controlled modification of dynamically-determined object attributes in the mathjs expression parser when evaluating arbitrary expressions. A remote user can submit a specially crafted expression to execute arbitrary JavaScript.

The issue affects applications that allow users to evaluate arbitrary expressions using the mathjs expression parser.

2) Improperly Controlled Modification of Dynamically-Determined Object Attributes (CVE-ID: CVE-2026-40897)

CWE-ID: CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to improperly controlled modification of dynamically-determined object attributes in the mathjs expression parser when evaluating user-supplied expressions. A remote user can submit a specially crafted expression to execute arbitrary code.

The issue affects applications that allow users to evaluate arbitrary expressions using the mathjs expression parser.

3) Improperly Controlled Modification of Dynamically-Determined Object Attributes (CVE-ID: CVE-2026-41139)

CWE-ID: CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary JavaScript.

The vulnerability exists due to improperly controlled modification of dynamically-determined object attributes in the mathjs expression parser when evaluating user-supplied expressions. A remote user can submit a specially crafted expression to execute arbitrary JavaScript.

The issue affects applications that allow users to evaluate arbitrary expressions using the mathjs expression parser.

Remediation

Install update from vendor's website.

References

• https://github.com/josdejong/mathjs/security/advisories/GHSA-jvff-x2qm-6286
• https://github.com/josdejong/mathjs/security/advisories/GHSA-29qv-4j9f-fjw5
• https://github.com/josdejong/mathjs/security/advisories/GHSA-5v89-rwgr-qj6g