CVE Intelligence

Msgpack Msgpack-python vulnerabilities

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Published CVEs affecting Msgpack Msgpack-python: 1 record(s), with affected versions and fixes.

CVE-2026-57585 High · 7.5 CWE-416 Jun 30, 2026
MessagePack: Out-of-bounds read/crash on Unpacker reuse after caught error
MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.1, there is an Out-of-bounds read/crash on Unpacker reuse after a caught error, potentially leading to a DoS attack. If the Unpacker is used repeatedly after an error occurs, the process may crash with a SEGV. This issue has been fixed in version 1.2.1.