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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libcompress-raw-zlib-perl | Ubuntu | upstream | * |
| Perl | Ubuntu | upstream | * |
References
- https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/
- https://github.com/madler/zlib
- https://github.com/madler/zlib/releases/tag/v1.3.2
- https://github.com/pmqs/Compress-Raw-Zlib/issues/41
- https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes
- https://www.cve.org/CVERecord?id=CVE-2026-27171
- https://www.zlib.net/