{"id":"CVE-2026-107302","revision":"8efaadc5ac6c4551ac18c2c8815cb4a1","records":[{"revision":"8efaadc5ac6c4551ac18c2c8815cb4a1","observedAt":"2026-10-25T05:17:13.11+00:00","statement":{"source":"nvd","id":"CVE-2026-107302","aliases":[],"title":"msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the decoder reads the four-byte length of a map32 value before validating that the complete five-byte header is available. A truncated map32 header therefo…","description":"msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the decoder reads the four-byte length of a map32 value before validating that the complete five-byte header is available. A truncated map32 header therefore causes a checked out-of-bounds buffer read and throws RangeError instead of IncompleteBufferError, which can unexpectedly terminate a request, stream, or worker in applications that wait for additional bytes after IncompleteBufferError. There is no adjacent-memory disclosure because the buffer implementation checks bounds. This issue is fixed in version 6.1.0.","state":0,"publishedAt":"2026-10-08T18:17:19.1+00:00","modifiedAt":"2026-10-19T20:17:47.077+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/15443a1f2aa682a6aa37f1705ac628de5b866ad1","https://github.com/mcollina/msgpack5/releases/tag/v6.1.0","https://github.com/mcollina/msgpack5/security/advisories/GHSA-8f34-f56x-9xph"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107302","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-125"],"productCriteria":[],"sourceDates":{"published":"2026-10-08T18:17:19.100","lastModified":"2026-10-19T20:17:47.077"},"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-2026-107302","identifiers":["CVE-2026-107302"]},"retained":false,"historicalAffected":[]}],"coverage":[]}