CVE-2026-48170

{"id": "CVE-2026-48170", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48170", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-10T13:53:45.430723Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 5.3, "exploitabilityScore": 3.1}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "thomaspoignant", "product": "scim-patch", "versions": [{"status": "affected", "version": "< 0.9.1"}]}]}], "published": "2026-08-07T22:16:59.170", "references": [{"url": "https://github.com/thomaspoignant/scim-patch/commit/260f9cd2ac5ceac3976978850bb47dcb391720f6", "source": "security-advisories@github.com"}, {"url": "https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c", "source": "security-advisories@github.com"}, {"url": "https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "`scim-patch`, a library to perform SCIM patch, prior to version 0.9.1 performs prototype pollution when applying a SCIM PATCH operation whose `value` object contains a key like `\"__proto__.someProp\"`. After one such patch,\n`Object.prototype.someProp` is set process-wide, affecting every plain object in the Node process. Any service that calls `scimPatch()` on attacker-controlled JSON (i.e. any SCIM endpoint accepting `PATCH` from an external IdP) is exploitable on a stock Node runtime. Version 0.9.1 contains a patch. A workaround is available. Calling `Object.freeze(Object.prototype)` (and the same on `Array.prototype`, `Function.prototype`) at process startup neutralizes this class of bug \u2014 assignment to a frozen prototype becomes a silent no-op in sloppy mode or a `TypeError` in strict mode. Node's `--frozen-intrinsics` flag does this for built-ins automatically."}, {"lang": "es", "value": "\u201cscim-patch\u201d, una biblioteca para realizar un parche SCIM, anterior a la versi\u00f3n 0.9.1 realiza contaminaci\u00f3n de prototipos al aplicar una operaci\u00f3n SCIM PATCH cuyo objeto \u201cvalue\u201d contiene una clave como \u2019\u201c__proto__.someProp\u201d\u2019. Despu\u00e9s de un parche de este tipo, \u201cObject.prototype.someProp\u201d se establece en todo el proceso, afectando a cada objeto simple en el proceso de Node. Cualquier servicio que llame a \u201cscimPatch()\u201d en JSON controlado por el atacante (es decir, cualquier endpoint SCIM que acepte \u201cPATCH\u201d de un IdP externo) es explotable en un entorno de ejecuci\u00f3n de Node est\u00e1ndar. La versi\u00f3n 0.9.1 contiene un parche. Una soluci\u00f3n alternativa est\u00e1 disponible. Llamar a \u201cObject.freeze(Object.prototype)\u201d (y lo mismo en \u201cArray.prototype\u201d, \u201cFunction.prototype\u201d) al inicio del proceso neutraliza esta clase de error - la asignaci\u00f3n a un prototipo congelado se convierte en una operaci\u00f3n nula silenciosa en modo permisivo o en un \u201cTypeError\u201d en modo estricto. El flag \u201c--frozen-intrinsics\u201d de Node hace esto para los elementos incorporados autom\u00e1ticamente."}], "lastModified": "2026-10-23T20:10:00.160", "sourceIdentifier": "security-advisories@github.com"}