There is 1 open security issue in bullseye.
1 important issue:
- CVE-2026-54522:
MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Buffer#clear in ext/msgpack/buffer.c leaves rmem_last, rmem_end, and rmem_owner stale after _msgpack_buffer_shift_chunk returns an rmem page to the shared pool, allowing a subsequent Buffer#write and a second MessagePack::Buffer to alias the page and disclose or corrupt cross-buffer data. This issue is fixed in version 1.8.2.
![[bug history graph]](https://qa.debian.org/data/bts/graphs/r/ruby-msgpack.png){kind=link}