{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-106550", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-10-06T20:07:46.075Z", "datePublished": "2026-10-06T20:09:55.919Z", "dateUpdated": "2026-10-06T20:09:55.919Z"}, "containers": {"cna": {"title": "CVE-2026-106550", "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\u2011pollution 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()."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Mozilla", "product": "Node-convict", "versions": [{"status": "affected", "version": "6.2.2"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u2018Prototype Pollution\u2019)"}]}, {"descriptions": [{"lang": "en", "description": "CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes"}]}, {"descriptions": [{"lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption (\u2018Denial of Service\u2019)"}]}], "references": [{"url": "https://github.com/mozilla/node-convict"}], "x_generator": {"engine": "VINCE 3.0.49", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-106550"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-06T20:09:55.919Z"}}}}

{}

{"affected": [{"affectedData": [{"product": "Node-convict", "vendor": "Mozilla", "versions": [{"status": "affected", "version": "6.2.2"}]}], "source": "cret@cert.org"}], "cveTags": [], "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\u2011pollution 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()."}], "id": "CVE-2026-106550", "lastModified": "2026-10-06T21:17:18.810", "metrics": {}, "published": "2026-10-06T21:17:18.810", "references": [{"source": "cret@cert.org", "url": "https://github.com/mozilla/node-convict"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Received"}

{}

{}