{"id":"AZL-106848","summary":"CVE-2026-107299 affecting package msgpack 3.3.0-1","details":"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.","modified":"2026-10-09T14:17:20.580123175Z","published":"2026-10-08T17:17:15Z","upstream":["CVE-2026-107299"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107299"}],"affected":[{"package":{"name":"msgpack","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/msgpack"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.3.0-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-106848.json"}}],"schema_version":"1.9.0"}