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EUVD-2026-309161

2026-10-14T20:14:14.976577+00:00

EUVD-2026-309161

fkie_cve-2026-41507

2026-10-14T20:14:14.976606+00:00

math-codegen generates code from mathematical expressions. Prior to version 0.4.3, string literal content passed to cg.parse() is injected verbatim into a new Function() body without sanitization. This allows an attacker to execute arbitrary system commands when user-controlled input reaches the parser. Any application exposing a math evaluation endpoint where user input flows into cg.parse() is vulnerable to full RCE. This issue has been patched in version 0.4.3.

GHSA-p6x5-p4xf-cc4r — Remote Code Execution (RCE) via String Literal Injection into math-codegen

2026-10-14T20:14:14.976638+00:00

Affected: npm: math-codegen

### Impact

String literal content passed to `cg.parse()` is injected verbatim into a `new Function()` body without sanitization. This allows an attacker to execute arbitrary system commands when user-controlled input reaches the parser. Any application exposing a math evaluation endpoint where user input flows into `cg.parse()` is vulnerable to full RCE. ### Patches

The vulnerability is addressed by using `JSON.stringify()` on string literal values in `lib/node/ConstantNode.js` to ensure they are treated as data rather than code. Users should upgrade to version 0.4.3 or later. ### Workarounds

Avoid passing un-sanitized user input to the parser or manually escape string literals in the input.