CVE-2026-107302
CVE-2026-107302 · msgpack5: Truncated map32 headers throw an unexpected error
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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.
CVSS 7.5 · Élevée · EPSS 0,5% · Correctif disponible
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Pile logicielle: node