ubuntu-cve-2026-4176
Vulnerability from osv_ubuntu
Published
2026-03-29 21:16
Modified
2026-06-24 13:28
Summary
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.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcgi-fast-perl",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "libperl5.18",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          },
          {
            "binary_name": "perl-modules",
            "binary_version": "5.18.2-2ubuntu1.7+esm7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.18.2-2ubuntu1.7+esm7?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libperl5.22",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
          },
          {
            "binary_name": "perl-modules-5.22",
            "binary_version": "5.22.1-9ubuntu0.9+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.22.1-9ubuntu0.9+esm2?arch=source\u0026distro=esm-infra-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libperl5.26",
            "binary_version": "5.26.1-6ubuntu0.7+esm2"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.26.1-6ubuntu0.7+esm2"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.26.1-6ubuntu0.7+esm2"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.26.1-6ubuntu0.7+esm2"
          },
          {
            "binary_name": "perl-modules-5.26",
            "binary_version": "5.26.1-6ubuntu0.7+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.26.1-6ubuntu0.7+esm2?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libperl5.30",
            "binary_version": "5.30.0-9ubuntu0.5+esm2"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.30.0-9ubuntu0.5+esm2"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.30.0-9ubuntu0.5+esm2"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.30.0-9ubuntu0.5+esm2"
          },
          {
            "binary_name": "perl-modules-5.30",
            "binary_version": "5.30.0-9ubuntu0.5+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.30.0-9ubuntu0.5+esm2?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    }
  ],
  "aliases": [],
  "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.",
  "id": "UBUNTU-CVE-2026-4176",
  "modified": "2026-06-24T13:28:33Z",
  "published": "2026-03-29T21:16:00Z",
  "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"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-4176"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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