Description
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 7.5EPSS 0.27899999999999997%Risk 0.77
View source- Published
- 2026-06-30 22:16:57
- Affected versions
- <1.2.1
- Type
- Library
- Last modified
- 2026-08-06 15:51:03
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H