CVE-2026-54522

creationtimestamp| type| source ---|---|--- 2026-07-30 17:31:24+00:00| seen| https://gist.github.com/alon710/f9483ca84f65ab9c98c78744c876def1 2026-07-30 18:35:03+00:00| published-proof-of-concept| https://github.com/msgpack/msgpack-ruby/security/advisories/GHSA-4mrv-5p47-p938...

DEBIAN-CVE-2026-54522

MessagePack for Ruby is an implementation of the MessagePack binary serialization format. Prior to 1.8.2, MessagePack::Bufferclear in ext/msgpack/buffer.c leaves rmemlast, rmemend, and rmemowner stale after msgpackbuffershiftchunk returns an rmem page to the shared pool, allowing a subsequent...