Impact: Lodash versions 4.17.23 and earlier are vulnerable to prototype pollution in the _.unset and _.omit functions. The fix for (CVE-2025-13465: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg) only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype. The issue permits deletion of prototype properties but does not allow overwriting their original behavior. Patches: This issue is patched in 4.18.0. Workarounds: None. Upgrade to the patched version.
All versions of package sey are vulnerable to Prototype Pollution via the deepmerge() function.
All versions of package comb are vulnerable to Prototype Pollution via the deepMerge() function.
All versions of package merge-deep2 are vulnerable to Prototype Pollution via the mergeDeep() function.
All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.