{"id":"EUVD-2026-95110","revision":"7f071f5c9e6546cb8f00303842222938","records":[{"revision":"7f071f5c9e6546cb8f00303842222938","observedAt":"2026-11-09T05:07:36.843+00:00","statement":{"source":"euvd","id":"EUVD-2026-95110","aliases":["CVE-2026-107299","GHSA-26wq-p25c-j6fv"],"title":"msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder treats the reserved MessagePack byte 0xc1 as incomplete input instead of invalid input. When 0xc1 begins a stream, subsequent data re…","description":"msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder treats the reserved MessagePack byte 0xc1 as incomplete input instead of invalid input. When 0xc1 begins a stream, subsequent data remains buffered while the decoder waits for bytes that cannot make the value valid, allowing a remote peer to exhaust memory. This issue is fixed in version 6.1.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9,"severity":null}],"references":["https://github.com/mcollina/msgpack5/security/advisories/GHSA-26wq-p25c-j6fv","https://github.com/mcollina/msgpack5/commit/85da345bf1acc18ca441741e5cf4aa0ed0d69314","https://github.com/mcollina/msgpack5/releases/tag/v6.1.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95110","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 8, 2026, 5:09:47 PM","dateUpdated":"Oct 9, 2026, 3:15:00 PM"},"relatedAdvisories":[{"id":"msrc_CVE-2026-107299","title":"msgpack5: Reserved byte can cause unbounded stream buffering","vulnerabilityIds":["CVE-2026-107299"]}],"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-2026-95110","identifiers":["EUVD-2026-95110","CVE-2026-107299","GHSA-26wq-p25c-j6fv"]},"retained":false,"historicalAffected":[]}],"coverage":[]}