{"api_version":"1","generated_at":"2026-07-23T21:14:02+00:00","cve":"CVE-2021-28860","urls":{"html":"https://cve.report/CVE-2021-28860","api":"https://cve.report/api/cve/CVE-2021-28860.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-28860","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28860"},"summary":{"title":"CVE-2021-28860","description":"In Node.js mixme, prior to v0.5.1, an attacker can add or alter properties of an object via '__proto__' through the mutate() and merge() functions. The polluted attribute will be directly assigned to every object in the program. This will put the availability of the program at risk causing a potential denial of service (DoS).","state":"PUBLISHED","assigner":"mitre","published_at":"2021-05-03 12:15:07","updated_at":"2026-07-05 00:17:01"},"problem_types":["CWE-1321","n/a"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"6.4","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:P","baseScore":6.4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://nodejs.com","name":"http://nodejs.com","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","URL Repurposed"],"title":"NODEJS技术网","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.netapp.com/advisory/ntap-20210618-0005/","name":"https://security.netapp.com/advisory/ntap-20210618-0005/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"CVE-2021-28860 Node.js Vulnerability in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4","name":"https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"title":"Use of Potentially Dangerous Function in mixme · Advisory · adaltas/node-mixme · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028","name":"https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"],"title":"fix: dont pollute object proto #1 · adaltas/node-mixme@cfd5fbf · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://github.com/adaltas/node-mixme/issues/1","name":"https://github.com/adaltas/node-mixme/issues/1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Third Party Advisory"],"title":"Urgent matter · Issue #1 · adaltas/node-mixme · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.npmjs.com/~david","name":"https://www.npmjs.com/~david","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"@david","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28860","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28860","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"28860","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"adaltas","cpe5":"mixme","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"node.js","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2021","cve_id":"28860","cve":"CVE-2021-28860","epss":"0.019550000","percentile":"0.778600000","score_date":"2026-07-05","updated_at":"2026-07-06 00:01:18"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-03T21:55:11.778Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"http://nodejs.com"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.npmjs.com/~david"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/adaltas/node-mixme/issues/1"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://security.netapp.com/advisory/ntap-20210618-0005/"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"In Node.js mixme, prior to v0.5.1, an attacker can add or alter properties of an object via '__proto__' through the mutate() and merge() functions. The polluted attribute will be directly assigned to every object in the program. This will put the availability of the program at risk causing a potential denial of service (DoS)."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2026-07-04T23:45:10.593Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://www.npmjs.com/~david"},{"url":"https://github.com/adaltas/node-mixme/issues/1"},{"url":"https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028"},{"url":"https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4"},{"url":"https://security.netapp.com/advisory/ntap-20210618-0005/"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-28860","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In Node.js mixme, prior to v0.5.1, an attacker can add or alter properties of an object via '__proto__' through the mutate() and merge() functions. The polluted attribute will be directly assigned to every object in the program. This will put the availability of the program at risk causing a potential denial of service (DoS)."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"http://nodejs.com","refsource":"MISC","url":"http://nodejs.com"},{"name":"https://www.npmjs.com/~david","refsource":"MISC","url":"https://www.npmjs.com/~david"},{"name":"https://github.com/adaltas/node-mixme/issues/1","refsource":"MISC","url":"https://github.com/adaltas/node-mixme/issues/1"},{"name":"https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028","refsource":"MISC","url":"https://github.com/adaltas/node-mixme/commit/cfd5fbfc32368bcf7e06d1c5985ea60e34cd4028"},{"name":"https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4","refsource":"MISC","url":"https://github.com/adaltas/node-mixme/security/advisories/GHSA-79jw-6wg7-r9g4"},{"name":"https://security.netapp.com/advisory/ntap-20210618-0005/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20210618-0005/"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2021-28860","datePublished":"2021-05-03T11:48:33.000Z","dateReserved":"2021-03-19T00:00:00.000Z","dateUpdated":"2026-07-04T23:45:10.593Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2021-05-03 12:15:07","lastModifiedDate":"2026-07-05 00:17:01","problem_types":["CWE-1321","n/a"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.2}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:P","baseScore":6.4,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:adaltas:mixme:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.5.1","matchCriteriaId":"D3B742DF-38E8-406C-BA55-3238A57DC138"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"28860","Ordinal":"1","Title":"CVE-2021-28860","CVE":"CVE-2021-28860","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"28860","Ordinal":"1","NoteData":"In Node.js mixme, prior to v0.5.1, an attacker can add or alter properties of an object via '__proto__' through the mutate() and merge() functions. The polluted attribute will be directly assigned to every object in the program. This will put the availability of the program at risk causing a potential denial of service (DoS).","Type":"Description","Title":"CVE-2021-28860"},{"CveYear":"2021","CveId":"28860","Ordinal":"2","NoteData":"2021-05-03","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"28860","Ordinal":"3","NoteData":"2021-06-18","Type":"Other","Title":"Modified"}]}}}