{"api_version":"1","generated_at":"2026-10-07T06:59:14+00:00","cve":"CVE-2026-106550","urls":{"html":"https://cve.report/CVE-2026-106550","api":"https://cve.report/api/cve/CVE-2026-106550.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-106550","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-106550"},"summary":{"title":"CVE-2026-106550","description":"Mozilla's Node-convict (version 6.2.2 and later) is vulnerable to a Denial of Service vulnerability caused by incomplete prototype‑pollution protections in config.set(). An attacker controlling the configuration key can write arbitrary properties to constructor.<key>, which walk() resolves to the global Object function. This allows overwriting core JavaScript methods such as Object.assign, leading to persistent process-wide failures and requiring a restart. The issue bypasses existing filters that only block constructor.prototype.* and __proto__.*. Exploitation requires an endpoint that forwards attacker-controlled keys into config.set().","state":"PUBLISHED","assigner":"certcc","published_at":"2026-10-06 21:17:18","updated_at":"2026-10-06 21:17:18"},"problem_types":["CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (‘Prototype Pollution’)","CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","CWE-400: Uncontrolled Resource Consumption (‘Denial of Service’)"],"metrics":[],"references":[{"url":"https://github.com/mozilla/node-convict","name":"https://github.com/mozilla/node-convict","refsource":"cret@cert.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-106550","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106550","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Mozilla","product":"Node-convict","version":"affected 6.2.2","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"Node-convict","vendor":"Mozilla","versions":[{"status":"affected","version":"6.2.2"}]}],"descriptions":[{"lang":"en","value":"Mozilla's Node-convict (version 6.2.2 and later) is vulnerable to a Denial of Service vulnerability caused by incomplete prototype‑pollution protections in config.set(). An attacker controlling the configuration key can write arbitrary properties to constructor.<key>, which walk() resolves to the global Object function. This allows overwriting core JavaScript methods such as Object.assign, leading to persistent process-wide failures and requiring a restart. The issue bypasses existing filters that only block constructor.prototype.* and __proto__.*. Exploitation requires an endpoint that forwards attacker-controlled keys into config.set()."}],"problemTypes":[{"descriptions":[{"description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (‘Prototype Pollution’)","lang":"en"}]},{"descriptions":[{"description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en"}]},{"descriptions":[{"description":"CWE-400: Uncontrolled Resource Consumption (‘Denial of Service’)","lang":"en"}]}],"providerMetadata":{"dateUpdated":"2026-10-06T20:09:55.919Z","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","shortName":"certcc"},"references":[{"url":"https://github.com/mozilla/node-convict"}],"source":{"discovery":"UNKNOWN"},"title":"CVE-2026-106550","x_generator":{"engine":"VINCE 3.0.49","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-106550"}}},"cveMetadata":{"assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","assignerShortName":"certcc","cveId":"CVE-2026-106550","datePublished":"2026-10-06T20:09:55.919Z","dateReserved":"2026-10-06T20:07:46.075Z","dateUpdated":"2026-10-06T20:09:55.919Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 21:17:18","lastModifiedDate":"2026-10-06 21:17:18","problem_types":["CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (‘Prototype Pollution’)","CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","CWE-400: Uncontrolled Resource Consumption (‘Denial of Service’)"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"106550","Ordinal":"1","Title":"CVE-2026-106550","CVE":"CVE-2026-106550","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"106550","Ordinal":"1","NoteData":"Mozilla's Node-convict (version 6.2.2 and later) is vulnerable to a Denial of Service vulnerability caused by incomplete prototype‑pollution protections in config.set(). An attacker controlling the configuration key can write arbitrary properties to constructor.<key>, which walk() resolves to the global Object function. This allows overwriting core JavaScript methods such as Object.assign, leading to persistent process-wide failures and requiring a restart. The issue bypasses existing filters that only block constructor.prototype.* and __proto__.*. Exploitation requires an endpoint that forwards attacker-controlled keys into config.set().","Type":"Description","Title":"CVE-2026-106550"}]}}}