{"id":"CVE-2026-114129","revision":"393d8c6aacbc4d9d928368a71f1d1d2c","records":[{"revision":"393d8c6aacbc4d9d928368a71f1d1d2c","observedAt":"2026-10-25T05:17:18.597+00:00","statement":{"source":"nvd","id":"CVE-2026-114129","aliases":[],"title":"stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. From 2.0.0 until 3.7.0, FlexAssembler compiles string and regular-expression path filters into matchers that join the full ke…","description":"stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. From 2.0.0 until 3.7.0, FlexAssembler compiles string and regular-expression path filters into matchers that join the full key stack on every container start. Because the key stack grows with unbounded object or array nesting, a document nested to depth D causes D joins whose cost grows with the current depth, resulting in quadratic CPU consumption on the single-threaded event loop. The join occurs before the rule match decision, so the attacker does not need to know the target schema. Consumers using only function filters or no rules are not affected. A crafted nested document can stall all concurrent work in a process that feeds it to an affected FlexAssembler. This issue is fixed in 3.7.0, which adds a default maximum depth.","state":0,"publishedAt":"2026-10-21T18:17:25.65+00:00","modifiedAt":"2026-10-22T17:21:57.293+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.2,"severity":"MEDIUM"}],"references":["https://github.com/uhop/stream-json/commit/1929fd80495d45b47e8f8cb1d4e132f915aef012","https://github.com/uhop/stream-json/commit/c06c9a3c02adef89543e26ecebb45837cb284512","https://github.com/uhop/stream-json/releases/tag/3.7.0","https://github.com/uhop/stream-json/security/advisories/GHSA-jj87-hc4r-jwfw"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-114129","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-407"],"productCriteria":[],"sourceDates":{"published":"2026-10-21T18:17:25.650","lastModified":"2026-10-22T17:21:57.293"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-114129","identifiers":["CVE-2026-114129"]},"retained":false,"historicalAffected":[]}],"coverage":[]}