Vulnerability-Lookup

GHSA-8299-XH3W-XHX5

Vulnerability from github – Published: 2026-07-16 18:31 – Updated: 2026-07-16 21:30

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-13401"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-16T17:16:55Z",
    "severity": null
  },
  "details": "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 \"\u003ca =\u0027c\u0027\u003e\" or unbalanced quotes \"\u003ca b=\u0027\u0027\u0027\u0027\u0027\u0027\u0027c\u0027\u003e\" can trigger this condition.",
  "id": "GHSA-8299-xh3w-xhx5",
  "modified": "2026-07-16T21:30:34Z",
  "published": "2026-07-16T18:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13401"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nanoscopic/perl-XML-Bare/pull/2"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/16/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-13401 (GCVE-0-2026-13401)

Vulnerability from cvelistv5 – Published: 2026-07-16 16:14 – Updated: 2026-07-16 19:27

Title

XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes

Summary

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 "<a ='c'>" or unbalanced quotes "<a b='''''''c'>" can trigger this condition.

Severity

No CVSS data available.

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

CPANSec

References

3 references

URL	Tags
https://github.com/nanoscopic/perl-XML-Bare/pull/2	issue-tracking
https://security.metacpan.org/patches/X/XML-Bare/…	patch
http://www.openwall.com/lists/oss-security/2026/07/16/2

Impacted products

1 product

Vendor	Product	Version
CODECHILD	XML::Bare	Affected: 0 , ≤ 0.53 (custom)

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-16T19:27:57.805Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/16/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "XML-Bare",
          "product": "XML::Bare",
          "programFiles": [
            "parser.c"
          ],
          "programRoutines": [
            {
              "name": "parserc_parse"
            }
          ],
          "repo": "https://github.com/nanoscopic/perl-XML-Bare",
          "vendor": "CODECHILD",
          "versions": [
            {
              "lessThanOrEqual": "0.53",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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 \"\u003ca =\u0027c\u0027\u003e\" or unbalanced quotes \"\u003ca b=\u0027\u0027\u0027\u0027\u0027\u0027\u0027c\u0027\u003e\" can trigger this condition."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-16T16:14:50.176Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/nanoscopic/perl-XML-Bare/pull/2"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes",
      "workarounds": [
        {
          "lang": "en",
          "value": "Apply the patch."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-13401",
    "datePublished": "2026-07-16T16:14:50.176Z",
    "dateReserved": "2026-06-26T08:38:33.750Z",
    "dateUpdated": "2026-07-16T19:27:57.805Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-8299-XH3W-XHX5

CVE-2026-13401 (GCVE-0-2026-13401)

Tags

Sightings

Nomenclature