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{"bugzilla": {"description": "Perl: Compress::Raw::Zlib: zlib: Perl: Multiple vulnerabilities due to an outdated vendored zlib library", "id": "2452916", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452916"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-1104", "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.\nCompress::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blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.", "A flaw was found in Perl, stemming from its inclusion of an outdated `Compress::Raw::Zlib` module. This module bundles a vulnerable version of the `zlib` library, which is known to contain multiple security flaws, including CVE-2026-3381 and CVE-2026-27171. Exploitation of these underlying vulnerabilities could lead to various security impacts, depending on the specific flaw within `zlib`."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-4176", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "perl:5.32/perl", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "perl", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-03-29T20:50:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-4176\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-4176\nhttps://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94\nhttps://lists.security.metacpan.org/cve-announce/msg/37638919/\nhttps://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes\nhttps://metacpan.org/release/SHAY/perl-5.40.4/changes\nhttps://metacpan.org/release/SHAY/perl-5.42.2/changes\nhttps://www.cve.org/CVERecord?id=CVE-2026-3381"], "statement": "This is an Important vulnerability affecting Red Hat Enterprise Linux and OpenShift Container Platform. The Perl package includes an outdated `Compress::Raw::Zlib` module, which bundles a vulnerable version of the `zlib` library. Exploitation of the underlying `zlib` flaws could lead to various security impacts, depending on the flaw exploited. The general impact is tied to the same impact as the original flaw being exploited.", "threat_severity": "Moderate"}