Vulnerability Description
@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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/phun-ky/defaults-deep/commit/807dba930f8718f9126cad59d949b8fd
- https://github.com/phun-ky/defaults-deep/pull/49
- https://github.com/phun-ky/defaults-deep/releases/tag/2.0.5
- https://github.com/phun-ky/defaults-deep/security/advisories/GHSA-mj3g-7xcc-x4vh
FAQ
What is CVE-2026-54737?
CVE-2026-54737 is a vulnerability with a CVSS score of 7.3 (HIGH). @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...
How severe is CVE-2026-54737?
CVE-2026-54737 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-54737?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.