{"id":"UBUNTU-CVE-2026-4176","details":"Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.","modified":"2026-09-08T19:45:15.576128276Z","published":"2026-03-29T21:16:00Z","upstream":["CVE-2026-4176"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-4176"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-4176"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/38393284/"},{"type":"REPORT","url":"https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/37638919/"},{"type":"REPORT","url":"https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes"},{"type":"REPORT","url":"https://metacpan.org/release/SHAY/perl-5.40.4/changes"},{"type":"REPORT","url":"https://metacpan.org/release/SHAY/perl-5.42.2/changes"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-3381"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2026/03/30/2"}],"affected":[{"package":{"name":"perl","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/perl?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.14.2-21build1","5.18.1-4","5.18.1-4build1","5.18.1-5","5.18.2-2","5.18.2-2ubuntu1","5.18.2-2ubuntu1.1","5.18.2-2ubuntu1.3","5.18.2-2ubuntu1.4","5.18.2-2ubuntu1.6","5.18.2-2ubuntu1.7","5.18.2-2ubuntu1.7+esm3","5.18.2-2ubuntu1.7+esm4","5.18.2-2ubuntu1.7+esm5","5.18.2-2ubuntu1.7+esm7","5.18.2-2ubuntu1.7+esm8","5.18.2-2ubuntu1.7+esm9"],"ecosystem_specific":{"binaries":[{"binary_name":"libcgi-fast-perl","binary_version":"5.18.2-2ubuntu1.7+esm9"},{"binary_name":"libperl5.18","binary_version":"5.18.2-2ubuntu1.7+esm9"},{"binary_name":"perl","binary_version":"5.18.2-2ubuntu1.7+esm9"},{"binary_name":"perl-base","binary_version":"5.18.2-2ubuntu1.7+esm9"},{"binary_name":"perl-debug","binary_version":"5.18.2-2ubuntu1.7+esm9"},{"binary_version":"5.18.2-2ubuntu1.7+esm9","binary_name":"perl-modules"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4176.json"}},{"package":{"name":"perl","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/perl?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.20.2-6","5.22.1-3","5.22.1-4","5.22.1-5","5.22.1-7","5.22.1-8","5.22.1-9","5.22.1-9ubuntu0.2","5.22.1-9ubuntu0.3","5.22.1-9ubuntu0.5","5.22.1-9ubuntu0.6","5.22.1-9ubuntu0.9","5.22.1-9ubuntu0.9+esm1","5.22.1-9ubuntu0.9+esm2","5.22.1-9ubuntu0.9+esm3","5.22.1-9ubuntu0.9+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"5.22.1-9ubuntu0.9+esm4","binary_name":"libperl5.22"},{"binary_name":"perl","binary_version":"5.22.1-9ubuntu0.9+esm4"},{"binary_name":"perl-base","binary_version":"5.22.1-9ubuntu0.9+esm4"},{"binary_name":"perl-debug","binary_version":"5.22.1-9ubuntu0.9+esm4"},{"binary_version":"5.22.1-9ubuntu0.9+esm4","binary_name":"perl-modules-5.22"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4176.json"}},{"package":{"name":"perl","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/perl?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.26.0-8ubuntu1","5.26.1-2ubuntu1","5.26.1-3","5.26.1-4","5.26.1-4build1","5.26.1-5","5.26.1-6","5.26.1-6ubuntu0.1","5.26.1-6ubuntu0.2","5.26.1-6ubuntu0.3","5.26.1-6ubuntu0.5","5.26.1-6ubuntu0.6","5.26.1-6ubuntu0.7","5.26.1-6ubuntu0.7+esm2","5.26.1-6ubuntu0.7+esm3","5.26.1-6ubuntu0.7+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"5.26.1-6ubuntu0.7+esm4","binary_name":"libperl5.26"},{"binary_name":"perl","binary_version":"5.26.1-6ubuntu0.7+esm4"},{"binary_version":"5.26.1-6ubuntu0.7+esm4","binary_name":"perl-base"},{"binary_name":"perl-debug","binary_version":"5.26.1-6ubuntu0.7+esm4"},{"binary_name":"perl-modules-5.26","binary_version":"5.26.1-6ubuntu0.7+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4176.json"}},{"package":{"name":"perl","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/perl?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.28.1-6build1","5.30.0-7","5.30.0-9","5.30.0-9build1","5.30.0-9ubuntu0.2","5.30.0-9ubuntu0.3","5.30.0-9ubuntu0.4","5.30.0-9ubuntu0.5","5.30.0-9ubuntu0.5+esm2","5.30.0-9ubuntu0.5+esm3","5.30.0-9ubuntu0.5+esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"5.30.0-9ubuntu0.5+esm4","binary_name":"libperl5.30"},{"binary_version":"5.30.0-9ubuntu0.5+esm4","binary_name":"perl"},{"binary_name":"perl-base","binary_version":"5.30.0-9ubuntu0.5+esm4"},{"binary_name":"perl-debug","binary_version":"5.30.0-9ubuntu0.5+esm4"},{"binary_version":"5.30.0-9ubuntu0.5+esm4","binary_name":"perl-modules-5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