{"cve":"CVE-2026-54737","nvd":{"published":"2026-07-31T18:17:17.330","modified":"2026-10-23T23:10:00.157","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","score":7.3},"cwes":["CWE-1321"],"references":["https://github.com/phun-ky/defaults-deep/commit/807dba930f8718f9126cad59d949b8fd3539b059","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"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-54737","score":0.00455,"percentile":0.39185,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-mj3g-7xcc-x4vh","url":"https://osv.dev/vulnerability/GHSA-mj3g-7xcc-x4vh","summary":"@phun-ky/defaults-deep Has a Prototype Pollution issue via Unsafe Recursive Property Merging","modified":"2026-07-31T18:11:48.291706Z","packages":[{"ecosystem":"npm","name":"@phun-ky/defaults-deep","purl":"pkg:npm/%40phun-ky/defaults-deep","ranges":["<2.0.5"],"fixed":["2.0.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}