{"url":"http://public2.vulnerablecode.io/api/packages/529329?format=json","purl":"pkg:npm/putil-merge@3.6.4","type":"npm","namespace":"","name":"putil-merge","version":"3.6.4","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"3.8.0","latest_non_vulnerable_version":"3.8.0","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/41216?format=json","vulnerability_id":"VCID-6kkp-8kj1-rqej","summary":"Prototype Pollution\nPrototype pollution vulnerability in 'putil-merge' allows attacker to cause a denial of service and may lead to remote code execution.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-25953","reference_id":"","reference_type":"","scores":[{"value":"0.0254","scoring_system":"epss","scoring_elements":"0.85759","published_at":"2026-06-05T12:55:00Z"},{"value":"0.0254","scoring_system":"epss","scoring_elements":"0.85756","published_at":"2026-06-09T12:55:00Z"},{"value":"0.0254","scoring_system":"epss","scoring_elements":"0.85742","published_at":"2026-06-08T12:55:00Z"},{"value":"0.0254","scoring_system":"epss","scoring_elements":"0.85758","published_at":"2026-06-07T12:55:00Z"},{"value":"0.0254","scoring_system":"epss","scoring_elements":"0.85737","published_at":"2026-06-04T12:55:00Z"},{"value":"0.0254","scoring_system":"epss","scoring_elements":"0.85761","published_at":"2026-06-06T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-25953"},{"reference_url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25953","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.whitesourcesoftware.com/vulnerability-database/CVE-2021-25953"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25953","reference_id":"CVE-2021-25953","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-2021-25953"},{"reference_url":"https://github.com/advisories/GHSA-9x7m-9hpg-xxmw","reference_id":"GHSA-9x7m-9hpg-xxmw","reference_type":"","scores":[{"value":"CRITICAL","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-9x7m-9hpg-xxmw"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/58424?format=json","purl":"pkg:npm/putil-merge@3.7.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-y6fu-sut2-xyaj"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/putil-merge@3.7.0"}],"aliases":["CVE-2021-25953","GHSA-9x7m-9hpg-xxmw"],"risk_score":4.5,"exploitability":"0.5","weighted_severity":"9.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-6kkp-8kj1-rqej"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/42247?format=json","vulnerability_id":"VCID-y6fu-sut2-xyaj","summary":"Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')\nThis affects the package putil-merge The merge() function does not check the values passed into the argument. An attacker can supply a malicious value by adjusting the value to include the constructor property. Note: This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-PUTILMERGE-1317077","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-23470","reference_id":"","reference_type":"","scores":[{"value":"0.01455","scoring_system":"epss","scoring_elements":"0.81189","published_at":"2026-06-06T12:55:00Z"},{"value":"0.01455","scoring_system":"epss","scoring_elements":"0.812","published_at":"2026-06-09T12:55:00Z"},{"value":"0.01455","scoring_system":"epss","scoring_elements":"0.81182","published_at":"2026-06-08T12:55:00Z"},{"value":"0.01455","scoring_system":"epss","scoring_elements":"0.81186","published_at":"2026-06-07T12:55:00Z"},{"value":"0.01455","scoring_system":"epss","scoring_elements":"0.81157","published_at":"2026-06-04T12:55:00Z"},{"value":"0.01455","scoring_system":"epss","scoring_elements":"0.81185","published_at":"2026-06-05T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-23470"},{"reference_url":"https://github.com/panates/putil-merge","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/panates/putil-merge"},{"reference_url":"https://github.com/panates/putil-merge/commit/476d00078dfb2827d7c9ee0f2392c81b864f7bc5","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/panates/putil-merge/commit/476d00078dfb2827d7c9ee0f2392c81b864f7bc5"},{"reference_url":"https://snyk.io/vuln/SNYK-JS-PUTILMERGE-2391487","reference_id":"","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://snyk.io/vuln/SNYK-JS-PUTILMERGE-2391487"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23470","reference_id":"CVE-2021-23470","reference_type":"","scores":[{"value":"8.2","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23470"},{"reference_url":"https://github.com/advisories/GHSA-4g77-cvgw-grvw","reference_id":"GHSA-4g77-cvgw-grvw","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-4g77-cvgw-grvw"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/60373?format=json","purl":"pkg:npm/putil-merge@3.8.0","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/putil-merge@3.8.0"}],"aliases":["CVE-2021-23470","GHSA-4g77-cvgw-grvw"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-y6fu-sut2-xyaj"}],"fixing_vulnerabilities":[],"risk_score":"4.5","resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/putil-merge@3.6.4"}