underscore-keypath vulnerable to Prototype Pollution

HIGH 7.5CVE-2023-26139 · GHSA-gpvc-mx6g-cchv · Published 01/08/2023 · updated 17/06/2026

In short

CVE-2023-26139 is a HIGH (CVSS 7.5) vulnerability affecting underscore-keypath (underscore-keypath project), underscore-keypath.
Chance of exploitation in the next 30 days (EPSS): 0.89%, higher than 59.5% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
underscore-keypath underscore-keypath_project	`≥ 0.0.11`	No fix yet
underscore-keypath npm	`≥ 0.0.11, ≤ 0.9.3`	No fix yet

Description

Versions of the package underscore-keypath from 0.0.11 are vulnerable to Prototype Pollution via the name argument of the setProperty() function. Exploiting this vulnerability is possible due to improper input sanitization which allows the usage of arguments like __proto__.

NVD description

Versions of the package underscore-keypath from 0.0.11 are vulnerable to Prototype Pollution via the name argument of the setProperty() function. Exploiting this vulnerability is possible due to improper input sanitization which allows the usage of arguments like “__proto__”.

References

nvd.nist.gov/vuln/detail/CVE-2023-26139 · ADVISORY
gist.github.com/lelecolacola123/cc0d1e73780127aea9482c05f2ff3252 · WEB
jeeeyul/underscore-keypath · PACKAGE
security.snyk.io/vuln/SNYK-JS-UNDERSCOREKEYPATH-5416714 · WEB

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free