GHSA-fvqr-27wr-82fm
GitHub Security Advisory
Prototype Pollution in lodash
✓ GitHub Reviewed
MODERATE
Has CVE
Advisory Details
Versions of `lodash` before 4.17.5 are vulnerable to prototype pollution.
The vulnerable functions are 'defaultsDeep', 'merge', and 'mergeWith' which allow a malicious user to modify the prototype of `Object` via `__proto__` causing the addition or modification of an existing property that will exist on all objects.
## Recommendation
Update to version 4.17.5 or later.
Affected Packages
npm
lodash
Affected versions:
0
(fixed in 4.17.5)
Related CVEs
Key Information
5.0
/10
Dataset
Last updated: July 3, 2025 6:26 AM
Data from GitHub Advisory Database. This information is provided for research and educational purposes.