CVE-2026-13401

{
  "id": "CVE-2026-13401",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-07-16T17:16:55.320",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes.\n\nThe parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever.\n\nNameless attributes such as \"<a ='c'>\" or unbalanced quotes \"<a b='''''''c'>\" can trigger this condition."
    },
    {
      "lang": "es",
      "value": "Las versiones de XML::Bare hasta la 0.53 para Perl se colgarán en un bucle infinito al analizar atributos malformados.\n\nLa función parserc_parse nunca avanza el cursor de estado de análisis de atributos en ciertas formas de atributos malformados, repitiéndose indefinidamente.\n\nAtributos sin nombre como ’<a =’c’>’ o comillas desequilibradas ’<a b=’’’’’’’c’>’ pueden desencadenar esta condición."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "CODECHILD",
          "product": "XML::Bare",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "XML-Bare",
          "programFiles": [
            "parser.c"
          ],
          "programRoutines": [
            {
              "name": "parserc_parse"
            }
          ],
          "repo": "https://github.com/nanoscopic/perl-XML-Bare",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "0.53",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-17T12:51:48.086715Z",
          "id": "CVE-2026-13401",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/nanoscopic/perl-XML-Bare/pull/2",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/16/2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}