CVE-2021-23518

High

Description

The package cached-path-relative before 1.1.0 are vulnerable to Prototype Pollution via the cache variable that is set as {} instead of Object.create(null) in the cachedPathRelative function, which allows access to the parent prototype properties when the object is used to create the cached relative path. When using the origin path as __proto__, the attribute of the object is accessed instead of a path. **Note:** This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-CACHEDPATHRELATIVE-72573

SeverityHigh
CVSS7.3
Exploit probability—
ProductCached-path-relative
PublishedJan 21, 2022
First seenJan 21, 2022

How to fix

Update
  • cached-path-relative_project cached-path-relative1.1.0 or later
  • cached-path-relative1.1.0 or later

Affected products

ProductAffected versionsFixed in
cached-path-relative_project cached-path-relativev < 1.1.01.1.0
debian debian_linux10.0—
cached-path-relativenpmv < 1.1.01.1.0

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