{"id":"EUVD-2026-54686","revision":"82922d38520d476eb4d9e94008a4e1fd","records":[{"revision":"82922d38520d476eb4d9e94008a4e1fd","observedAt":"2026-11-03T09:59:13.843+00:00","statement":{"source":"euvd","id":"EUVD-2026-54686","aliases":["CVE-2026-48170","GHSA-9m6g-wc8r-q59c"],"title":"`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,","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":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD 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":null}],"references":["https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-9m6g-wc8r-q59c","https://github.com/thomaspoignant/scim-patch/commit/260f9cd2ac5ceac3976978850bb47dcb391720f6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-54686","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 7, 2026, 9:26:54 PM","dateUpdated":"Aug 10, 2026, 2:06:00 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-54686","identifiers":["EUVD-2026-54686","CVE-2026-48170","GHSA-9m6g-wc8r-q59c"]},"retained":false,"historicalAffected":[]}],"coverage":[]}