Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib. Compress::Raw::Zlib includes a copy of the zlib library. Compress::Raw::Zlib version 2.220 includes zlib 1.3.2, which addresses findings fron the 7ASecurity audit of zlib. The includes fixs for CVE-2026-27171.
https://www.cve.org/CVERecord?id=CVE-2026-27171
https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes
https://github.com/madler/zlib/releases/tag/v1.3.2