CVE-2026-107297

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder reparses an incomplete array or map from the beginning whenever another chunk arrives. A remote peer can split one valid MessagePack container across many small chunks, causing completed...

CVE-2026-107297 msgpack5: Quadratic parsing in the streaming decoder

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder reparses an incomplete array or map from the beginning whenever another chunk arrives. A remote peer can split one valid MessagePack container across many small chunks, causing completed...

EUVD-2026-95108

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder reparses an incomplete array or map from the beginning whenever another chunk arrives. A remote peer can split one valid MessagePack container across many small chunks, causing completed...

CVE-2026-107297

The msgpack5 library (a msgpack v5 implementation for Node.js and the browser) is vulnerable to a quadratic CPU use issue in versions prior to 6.1.0 . The streaming decoder reparses incomplete arrays or maps from the beginning every time a new chunk arrives. A remote peer can exploit this by spli...