{"url":"http://public2.vulnerablecode.io/api/packages/216117?format=json","purl":"pkg:npm/merge-deep@0.1.0","type":"npm","namespace":"","name":"merge-deep","version":"0.1.0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"3.0.3","latest_non_vulnerable_version":"3.0.3","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/30581?format=json","vulnerability_id":"VCID-are6-5vkj-rqg2","summary":"merge-deep prototype pollution\nmerge-deep node module before 3.0.1 suffers from a prototype pollution vulnerability via merging functions, which allows a malicious user to modify the prototype of 'Object' via __proto__, causing the addition or modification of an existing property that will exist on all objects.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2018-3722","reference_id":"","reference_type":"","scores":[{"value":"0.0047","scoring_system":"epss","scoring_elements":"0.64912","published_at":"2026-06-04T12:55:00Z"},{"value":"0.0047","scoring_system":"epss","scoring_elements":"0.64959","published_at":"2026-06-09T12:55:00Z"},{"value":"0.0047","scoring_system":"epss","scoring_elements":"0.64942","published_at":"2026-06-08T12:55:00Z"},{"value":"0.0047","scoring_system":"epss","scoring_elements":"0.64953","published_at":"2026-06-07T12:55:00Z"},{"value":"0.0047","scoring_system":"epss","scoring_elements":"0.64965","published_at":"2026-06-06T12:55:00Z"},{"value":"0.0047","scoring_system":"epss","scoring_elements":"0.64955","published_at":"2026-06-05T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2018-3722"},{"reference_url":"https://github.com/advisories/GHSA-9g9w-hmvj-5h57","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-9g9w-hmvj-5h57"},{"reference_url":"https://github.com/jonschlinkert/merge-deep/commit/2c33634da7129a5aefcc262d2fec2e72224404e5","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jonschlinkert/merge-deep/commit/2c33634da7129a5aefcc262d2fec2e72224404e5"},{"reference_url":"https://hackerone.com/reports/310708","reference_id":"","reference_type":"","scores":[{"value":"1.8","scoring_system":"cvssv3","scoring_elements":""},{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://hackerone.com/reports/310708"},{"reference_url":"https://www.npmjs.com/advisories/580","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.npmjs.com/advisories/580"},{"reference_url":"https://github.com/nodejs/security-wg/blob/main/vuln/npm/371.json","reference_id":"371","reference_type":"","scores":[{"value":"1.8","scoring_system":"cvssv3","scoring_elements":""}],"url":"https://github.com/nodejs/security-wg/blob/main/vuln/npm/371.json"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2018-3722","reference_id":"CVE-2018-3722","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-3722"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/6636?format=json","purl":"pkg:npm/merge-deep@3.0.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-mpxn-n2jj-tyg5"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/merge-deep@3.0.1"}],"aliases":["CVE-2018-3722","GHSA-9g9w-hmvj-5h57"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-are6-5vkj-rqg2"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/39401?format=json","vulnerability_id":"VCID-d81s-m2gb-n3fg","summary":"Denial of Service and remote code execution\nUtilities function in merge-deep can be tricked into modifying the prototype of \"Object\" when the attacker control part of the structure passed to these function. This can let an attacker add or modify existing property that will exist on all object. This can lead to denial of service or remote code execution.","references":[{"reference_url":"https://github.com/jonschlinkert/merge-deep/commit/2c33634da7129a5aefcc262d2fec2e72224404e5","reference_id":"","reference_type":"","scores":[],"url":"https://github.com/jonschlinkert/merge-deep/commit/2c33634da7129a5aefcc262d2fec2e72224404e5"},{"reference_url":"https://hackerone.com/reports/310708","reference_id":"","reference_type":"","scores":[],"url":"https://hackerone.com/reports/310708"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/6636?format=json","purl":"pkg:npm/merge-deep@3.0.1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-mpxn-n2jj-tyg5"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/merge-deep@3.0.1"}],"aliases":["GMS-2018-16"],"risk_score":null,"exploitability":"0.5","weighted_severity":"0.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-d81s-m2gb-n3fg"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/54566?format=json","vulnerability_id":"VCID-mpxn-n2jj-tyg5","summary":"Prototype Pollution\nThe merge-deep library for Node.js can be tricked into overwriting properties of Object.prototype or adding new properties to it. These properties are then inherited by every object in the program, thus facilitating prototype-pollution attacks against applications using this library.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-26707.json","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-26707.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26707","reference_id":"","reference_type":"","scores":[{"value":"0.0109","scoring_system":"epss","scoring_elements":"0.78305","published_at":"2026-06-09T12:55:00Z"},{"value":"0.0109","scoring_system":"epss","scoring_elements":"0.78276","published_at":"2026-06-04T12:55:00Z"},{"value":"0.0109","scoring_system":"epss","scoring_elements":"0.78301","published_at":"2026-06-05T12:55:00Z"},{"value":"0.0109","scoring_system":"epss","scoring_elements":"0.78309","published_at":"2026-06-06T12:55:00Z"},{"value":"0.0109","scoring_system":"epss","scoring_elements":"0.78299","published_at":"2026-06-07T12:55:00Z"},{"value":"0.0109","scoring_system":"epss","scoring_elements":"0.78287","published_at":"2026-06-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-26707"},{"reference_url":"https://github.com/jonschlinkert/merge-deep/commit/11e5dd56de8a6aed0b1ed022089dbce6968d82a5","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jonschlinkert/merge-deep/commit/11e5dd56de8a6aed0b1ed022089dbce6968d82a5"},{"reference_url":"https://securitylab.github.com/advisories/GHSL-2020-160-merge-deep","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://securitylab.github.com/advisories/GHSL-2020-160-merge-deep"},{"reference_url":"https://securitylab.github.com/advisories/GHSL-2020-160-merge-deep/","reference_id":"","reference_type":"","scores":[],"url":"https://securitylab.github.com/advisories/GHSL-2020-160-merge-deep/"},{"reference_url":"https://security.netapp.com/advisory/ntap-20210716-0008","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://security.netapp.com/advisory/ntap-20210716-0008"},{"reference_url":"https://security.netapp.com/advisory/ntap-20210716-0008/","reference_id":"","reference_type":"","scores":[],"url":"https://security.netapp.com/advisory/ntap-20210716-0008/"},{"reference_url":"https://www.npmjs.com/package/merge-deep","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://www.npmjs.com/package/merge-deep"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1922259","reference_id":"1922259","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1922259"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26707","reference_id":"CVE-2021-26707","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26707"},{"reference_url":"https://github.com/advisories/GHSA-r6rj-9ch6-g264","reference_id":"GHSA-r6rj-9ch6-g264","reference_type":"","scores":[{"value":"CRITICAL","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-r6rj-9ch6-g264"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/80933?format=json","purl":"pkg:npm/merge-deep@3.0.3","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/merge-deep@3.0.3"}],"aliases":["CVE-2021-26707","GHSA-r6rj-9ch6-g264"],"risk_score":4.5,"exploitability":"0.5","weighted_severity":"9.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-mpxn-n2jj-tyg5"}],"fixing_vulnerabilities":[],"risk_score":"4.5","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/merge-deep@0.1.0"}