Msgpack: >> Messagepack >> 0.1.5 Security Vulnerabilities
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.
CVSS Score
7.5
EPSS Score
0.003
Published
2026-06-30