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msgpack vulnerabilities

Vulnerabilities published for msgpack in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1

  1. CVE-2026-57585

    High · CVSS 7.5EPSS 0.49%Fix available

    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.

    msgpackPython
    • Update to 1.2.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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