{"id":"CVE-2026-107300","revision":"473a8db373054e1dbb3425d847682b79","records":[{"revision":"473a8db373054e1dbb3425d847682b79","observedAt":"2026-10-25T05:17:13.11+00:00","statement":{"source":"nvd","id":"CVE-2026-107300","aliases":[],"title":"msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder recursively invokes itself for each complete MessagePack value remaining in a chunk. A remote peer can send one chunk containing many…","description":"msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder recursively invokes itself for each complete MessagePack value remaining in a chunk. A remote peer can send one chunk containing many small valid values, causing recursion proportional to the value count, exhausting the JavaScript call stack, and interrupting the process or stream. This issue is fixed in version 6.1.0.","state":0,"publishedAt":"2026-10-08T17:17:16+00:00","modifiedAt":"2026-10-08T20:48:36.97+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/mcollina/msgpack5/commit/77fbef144d05def5d16fc22c37caa64c0a7efeba","https://github.com/mcollina/msgpack5/releases/tag/v6.1.0","https://github.com/mcollina/msgpack5/security/advisories/GHSA-5x5g-h9x8-2fh9"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107300","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-674"],"productCriteria":[],"sourceDates":{"published":"2026-10-08T17:17:16.000","lastModified":"2026-10-08T20:48:36.970"},"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-2026-107300","identifiers":["CVE-2026-107300"]},"retained":false,"historicalAffected":[]}],"coverage":[]}