Vulnerability-Lookup

GHSA-682P-JXJC-9J4V

Vulnerability from github – Published: 2026-07-16 18:31 – Updated: 2026-07-17 15:32

Details

HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead.

The parserc_parse function attempts to check for multicharacter strings such as "<![CDATA" or element terminators such as ">" without checking that the offsets are within the buffer.

Truncated strings such as "<a/" can trigger an out-of-bounds read.

Note that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository.

Severity

9.1 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-57073"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-16T17:16:58Z",
    "severity": "CRITICAL"
  },
  "details": "HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead.\n\nThe parserc_parse function attempts to check for multicharacter strings such as \"\u003c![CDATA\" or element terminators such as \"\u003e\" without checking that the offsets are within the buffer.\n\nTruncated strings such as \"\u003ca/\" can trigger an out-of-bounds read.\n\nNote that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository.",
  "id": "GHSA-682p-jxjc-9j4v",
  "modified": "2026-07-17T15:32:23Z",
  "published": "2026-07-16T18:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57073"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nanoscopic/perl-HTML-Bare/pull/2"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/patches/H/HTML-Bare/0.02/CVE-2026-57073-r1.patch"
    },
    {
      "type": "WEB",
      "url": "https://security.metacpan.org/patches/H/HTML-Bare/0.04/CVE-2026-57073-r2.patch"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/16/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-57073 (GCVE-0-2026-57073)

Vulnerability from cvelistv5 – Published: 2026-07-16 16:15 – Updated: 2026-07-17 12:44

Title

HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead

Summary

HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead. The parserc_parse function attempts to check for multicharacter strings such as "<![CDATA" or element terminators such as ">" without checking that the offsets are within the buffer. Truncated strings such as "<a/" can trigger an out-of-bounds read. Note that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository.

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-17 12:44 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 64/100 over 273 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/nanoscopic/perl-HTML-Bare/pull/2	issue-tracking
https://security.metacpan.org/patches/H/HTML-Bare…	patch
https://security.metacpan.org/patches/H/HTML-Bare…	patch
http://www.openwall.com/lists/oss-security/2026/07/16/3

Impacted products

1 product

Vendor	Product	Version
CODECHILD	HTML::Bare	Affected: 0 , ≤ 0.04 (custom)

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JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-16T19:27:58.902Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/16/3"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-57073",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-17T12:44:11.342365Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-17T12:44:26.715Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "HTML-Bare",
          "product": "HTML::Bare",
          "programFiles": [
            "parser.c"
          ],
          "programRoutines": [
            {
              "name": "parserc_parse"
            }
          ],
          "repo": "https://github.com/nanoscopic/perl-HTML-Bare",
          "vendor": "CODECHILD",
          "versions": [
            {
              "lessThanOrEqual": "0.04",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead.\n\nThe parserc_parse function attempts to check for multicharacter strings such as \"\u003c![CDATA\" or element terminators such as \"\u003e\" without checking that the offsets are within the buffer.\n\nTruncated strings such as \"\u003ca/\" can trigger an out-of-bounds read.\n\nNote that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-540",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-540 Overread Buffers"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-16T16:15:16.551Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/nanoscopic/perl-HTML-Bare/pull/2"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://security.metacpan.org/patches/H/HTML-Bare/0.02/CVE-2026-57073-r1.patch"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://security.metacpan.org/patches/H/HTML-Bare/0.04/CVE-2026-57073-r2.patch"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead",
      "workarounds": [
        {
          "lang": "en",
          "value": "Apply the patch to version 0.02 (from CPAN) or version 0.04 (from the git repository)."
        }
      ],
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-57073",
    "datePublished": "2026-07-16T16:15:16.551Z",
    "dateReserved": "2026-06-23T17:59:40.467Z",
    "dateUpdated": "2026-07-17T12:44:26.715Z",
    "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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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