CVE-2026-54737: @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 objec
@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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-54737
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-54737 | coverage & exploitation status | NVD · CVE.org |
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