CVE-2026-54737
CVE-2026-54737 · @phun-ky/defaults-deep Has a Prototype Pollution issue via Unsafe Recursive Property Merging
This page contains facts from public vulnerability sources. Check the original advisory before updating.
@phun-ky/defaults-deep is a library like lodash defaultsDeep with array preservation and no lodash dependency. Prior to 2.0.5, defaultsDeep() recursively merges user-supplied objects without filtering proto, constructor, and prototype, allowing properties to be written to Object.prototype. This issue is fixed in version 2.0.5.
CVSS 7.3 · High · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
defaults-deep
- Versions
- < 2.0.5: Affected
No fix published
@phun-ky/defaults-deep npm
- Affected ranges
- SEMVER: < 2.0.5
Update to 2.0.5
Original sources
- https://github.com/phun-ky/defaults-deep/security/advisories/GHSA-mj3g-7xcc-x4vh
- https://github.com/phun-ky/defaults-deep/pull/49
- https://github.com/phun-ky/defaults-deep/commit/807dba930f8718f9126cad59d949b8fd3539b059
- https://github.com/phun-ky/defaults-deep/releases/tag/2.0.5
- https://nvd.nist.gov/vuln/detail/CVE-2026-54737