ubuntu-cve-2026-13401
Vulnerability from osv_ubuntu
Published
2026-07-17 00:00
Modified
2026-07-17 00:00
Summary
Details

XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes. The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever. Nameless attributes such as "" or unbalanced quotes "" can trigger this condition.

Severity
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxml-bare-perl",
            "binary_version": "0.53-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libxml-bare-perl",
        "purl": "pkg:deb/ubuntu/libxml-bare-perl@0.53-1build2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.53-1build1",
        "0.53-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxml-bare-perl",
            "binary_version": "0.53-1build4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libxml-bare-perl",
        "purl": "pkg:deb/ubuntu/libxml-bare-perl@0.53-1build4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.53-1build4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxml-bare-perl",
            "binary_version": "0.53-1build6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libxml-bare-perl",
        "purl": "pkg:deb/ubuntu/libxml-bare-perl@0.53-1build6?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.53-1build5",
        "0.53-1build6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxml-bare-perl",
            "binary_version": "0.53-1build8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libxml-bare-perl",
        "purl": "pkg:deb/ubuntu/libxml-bare-perl@0.53-1build8?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.53-1build7",
        "0.53-1build8"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxml-bare-perl",
            "binary_version": "0.53-2build4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libxml-bare-perl",
        "purl": "pkg:deb/ubuntu/libxml-bare-perl@0.53-2build4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.53-2build1",
        "0.53-2build2",
        "0.53-2build3",
        "0.53-2build4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libxml-bare-perl",
            "binary_version": "0.53-4build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libxml-bare-perl",
        "purl": "pkg:deb/ubuntu/libxml-bare-perl@0.53-4build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.53-4build1"
      ]
    }
  ],
  "aliases": [],
  "details": "XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes. The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever. Nameless attributes such as \"\u003ca =\u0027c\u0027\u003e\" or unbalanced quotes \"\u003ca b=\u0027\u0027\u0027\u0027\u0027\u0027\u0027c\u0027\u003e\" can trigger this condition.",
  "id": "UBUNTU-CVE-2026-13401",
  "modified": "2026-07-17T00:00:00Z",
  "published": "2026-07-17T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-13401"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-13401"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/41876829/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/nanoscopic/perl-XML-Bare/pull/2"
    },
    {
      "type": "REPORT",
      "url": "https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/16/2"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-13401"
  ]
}



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