{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-48170", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-20T23:12:43.033Z", "datePublished": "2026-08-07T21:26:54.941Z", "dateUpdated": "2026-08-10T14:06:00.075Z" }, "containers": { "cna": { "title": "scimPatch vulnerable to prototype pollution via unfiltered keys in patch", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L", "version": "3.1" } } ], "references": [ { "name": "https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c" }, { "name": "https://github.com/thomaspoignant/scim-patch/commit/260f9cd2ac5ceac3976978850bb47dcb391720f6", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/thomaspoignant/scim-patch/commit/260f9cd2ac5ceac3976978850bb47dcb391720f6" } ], "affected": [ { "vendor": "thomaspoignant", "product": "scim-patch", "versions": [ { "version": "< 0.9.1", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-07T21:26:54.941Z" }, "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 — 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." } ], "source": { "advisory": "GHSA-9m6g-wc8r-q59c", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-10T13:53:45.430723Z", "id": "CVE-2026-48170", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-10T14:06:00.075Z" } } ] } }