CVE-2026-107299
CVE-2026-107299 · msgpack5: Reserved byte can cause unbounded stream buffering
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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.
CVSS 5.9 · Moyenne · EPSS 0,4% · Correctif disponible
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Pile logicielle: node