{"id":"CVE-2026-48170","revision":"96ca7f36fe244b27a880a6a1e08e65ba","records":[{"revision":"96ca7f36fe244b27a880a6a1e08e65ba","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-48170","aliases":[],"title":"scimPatch vulnerable to prototype pollution via unfiltered keys in patch","description":"`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.","state":0,"publishedAt":"2026-08-07T21:26:54.941+00:00","modifiedAt":"2026-08-10T14:06:00.075+00:00","affected":[{"ecosystem":"Vendor product","name":"scim-patch","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"thomaspoignant\",\n                    \"product\": \"scim-patch\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.9.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L","score":9.1,"severity":"CRITICAL"}],"references":["https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c","https://github.com/thomaspoignant/scim-patch/commit/260f9cd2ac5ceac3976978850bb47dcb391720f6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-48170","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-48170","identifiers":["CVE-2026-48170"]},"retained":false,"historicalAffected":[]}],"coverage":[]}