Improperly Controlled Modification of Dynamically-Determined Object Attributes in Mathjs - CVE-2026-40897
Published: April 20, 2026
Vulnerability identifier: #VU126582
CSH Severity: Medium
CVSS v4.0: 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
CVE-ID: CVE-2026-40897
CWE-ID: CWE-915
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mathjs
Affected software:
Mathjs
Mathjs
Detailed vulnerability description
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.
How to mitigate CVE-2026-40897
Install security update from vendor's website.