{"cve":"CVE-2018-16469","nvd":{"published":"2018-10-30T21:29:00.997","modified":"2026-06-17T01:44:20.833","status":"Modified","description":"The merge.recursive function in the merge package <1.2.1 can be tricked into adding or modifying properties of the Object prototype. These properties will be present on all objects allowing for a denial of service attack.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-20","CWE-400"],"references":["https://hackerone.com/reports/381194","https://hackerone.com/reports/381194"],"products":["merge_project:merge"],"source":"nvd","synced_at":"2026-10-19T20:53:59.789560037+00:00"},"epss":{"cve":"CVE-2018-16469","score":0.01678,"percentile":0.76913,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-f9cm-qmx5-m98h","url":"https://osv.dev/vulnerability/GHSA-f9cm-qmx5-m98h","summary":"Prototype Pollution in merge","modified":"2023-11-08T03:59:59.699200Z","packages":[{"ecosystem":"npm","name":"merge","purl":"pkg:npm/merge","ranges":["<1.2.1"],"fixed":["1.2.1"]}]}],"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."]}