Description
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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| PMQS | Compress::Raw::Zlib | ≤ 2.219 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libcompress-raw-zlib-perl | 2.011-2 | — |
| Debian 13 | libcompress-raw-zlib-perl | 2.011-2 | — |
| Debian 12 | libcompress-raw-zlib-perl | 2.011-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libcompress-raw-zlib-perl | No fix yet | — |
| Ubuntu 18.04 LTS | libcompress-raw-zlib-perl | No fix yet | — |
| Ubuntu 16.04 LTS | libcompress-raw-zlib-perl | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | perl-Compress-Raw-Zlib | 2.222-1.1 | openSUSE-SU-2026:10320-1 |
| openSUSE Leap 16.0 | perl-Compress-Raw-Zlib | 2.222-bp160.1.1 | openSUSE-SU-2026:21142-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | perl-compress-raw-zlib | 2.222-r0 | — |
| Alpine v3.23 | perl-compress-raw-zlib | 2.222-r0 | — |
| Alpine v3.22 | perl-compress-raw-zlib | 2.222-r0 | — |
| Alpine v3.21 | perl-compress-raw-zlib | 2.222-r0 | — |
| Alpine v3.20 | perl-compress-raw-zlib | 2.222-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | gdb +31 | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | nss +32 | No fix yet | — |
Advisories 4
- openSUSE-SU-2026:21142-1 Security update for perl-Compress-Raw-Zlib SUSE / openSUSE Security Updates · Jun 30, 2026
- WID-SEC-2026-1032 IBM Tivoli Network Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 7, 2026
- WID-SEC-2026-0835 cPanel cPanel/WHM: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 21, 2026
- openSUSE-SU-2026:10320-1 perl-Compress-Raw-Zlib-2.222-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
References
- https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes release-notes
- https://www.zlib.net/
- https://github.com/madler/zlib
- https://github.com/madler/zlib/releases/tag/v1.3.2 release-notes
- https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/ technical-description
- https://www.cve.org/CVERecord?id=CVE-2026-27171 vendor-advisory related vdb-entry
- https://github.com/pmqs/Compress-Raw-Zlib/issues/41 issue-tracking