CVE-2026-54522 | msgpack MessagePack up to 1.8.1 Buffer ext/msgpack/buffer.c Buffer#clear buffer overflow

July 30, 2026 Yanac

A vulnerability categorized as problematic has been discovered in msgpack MessagePack up to 1.8.1. Affected by this vulnerability is the function MessagePack::Buffer#clear of the file ext/msgpack/buffer.c of the component Buffer. Executing a manipulation can lead to buffer overflow.

This vulnerability appears as CVE-2026-54522. The attack may be performed from remote. There is no available exploit.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More