{
   "document": {
      "category": "csaf_security_advisory",
      "csaf_version": "2.0",
      "distribution": {
         "tlp": {
            "label": "WHITE",
            "url": "https://www.first.org/tlp/"
         }
      },
      "lang": "en",
      "notes": [
         {
            "category": "description",
            "text": "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.",
            "title": "Vulnerability Description"
         }
      ],
      "publisher": {
         "category": "other",
         "contact_details": "gdt@cpan.org",
         "name": "giterlizzi",
         "namespace": "https://github.com/giterlizzi/"
      },
      "references": [
         {
            "category": "self",
            "summary": "CPANSA-Compress-Raw-Zlib-2026-4176 JSON",
            "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-compress-raw-zlib-2026-4176.json"
         },
         {
            "category": "external",
            "summary": "https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94",
            "url": "https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94"
         },
         {
            "category": "external",
            "summary": "https://lists.security.metacpan.org/cve-announce/msg/37638919/",
            "url": "https://lists.security.metacpan.org/cve-announce/msg/37638919/"
         },
         {
            "category": "external",
            "summary": "https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes",
            "url": "https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes"
         },
         {
            "category": "external",
            "summary": "https://metacpan.org/release/SHAY/perl-5.40.4/changes",
            "url": "https://metacpan.org/release/SHAY/perl-5.40.4/changes"
         },
         {
            "category": "external",
            "summary": "https://metacpan.org/release/SHAY/perl-5.42.2/changes",
            "url": "https://metacpan.org/release/SHAY/perl-5.42.2/changes"
         },
         {
            "category": "external",
            "summary": "https://www.cve.org/CVERecord?id=CVE-2026-3381",
            "url": "https://www.cve.org/CVERecord?id=CVE-2026-3381"
         },
         {
            "category": "external",
            "summary": "http://www.openwall.com/lists/oss-security/2026/03/30/2",
            "url": "http://www.openwall.com/lists/oss-security/2026/03/30/2"
         },
         {
            "category": "external",
            "summary": "CVE-2026-4176 (NVD)",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4176"
         }
      ],
      "title": "Compress-Raw-Zlib vulnerability",
      "tracking": {
         "current_release_date": "2026-03-29T00:00:00",
         "generator": {
            "engine": {
               "name": "CSAF Perl Toolkit",
               "version": "0.26"
            }
         },
         "id": "CPANSA-Compress-Raw-Zlib-2026-4176",
         "initial_release_date": "2026-03-29T00:00:00",
         "revision_history": [
            {
               "date": "2026-03-29T00:00:00",
               "number": "1",
               "summary": "First release"
            }
         ],
         "status": "final",
         "version": "1"
      }
   },
   "product_tree": {
      "branches": [
         {
            "branches": [
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/<2.218",
                  "product": {
                     "name": "Compress-Raw-Zlib less than 2.218",
                     "product_id": "CSAFPID-0001",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/Compress-Raw-Zlib"
                     }
                  }
               },
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/>=2.218",
                  "product": {
                     "name": "Compress-Raw-Zlib greater than or equal 2.218",
                     "product_id": "CSAFPID-0002",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/Compress-Raw-Zlib"
                     }
                  }
               }
            ],
            "category": "product_name",
            "name": "Compress-Raw-Zlib"
         }
      ]
   },
   "vulnerabilities": [
      {
         "cve": "CVE-2026-4176",
         "notes": [
            {
               "category": "description",
               "text": "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.\n\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.",
               "title": "Vulnerability Description"
            }
         ],
         "product_status": {
            "fixed": [
               "CSAFPID-0002"
            ],
            "known_affected": [
               "CSAFPID-0001"
            ]
         },
         "scores": [
            {
               "cvss_v3": {
                  "baseScore": 9.8,
                  "baseSeverity": "CRITICAL",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
               },
               "products": [
                  "CSAFPID-0001"
               ]
            }
         ]
      }
   ]
}