Vulnerability-Lookup

CVE-2026-13397 (GCVE-0-2026-13397)

Vulnerability from cvelistv5 – Published: 2026-07-16 16:14 – Updated: 2026-07-17 13:30

Title

HTML::Bare versions through 0.04 for Perl will hang in an infinite loop when parsing malformed attributes

Summary

HTML::Bare versions through 0.04 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. Note that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-17 13:29 UTC

CWE

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

Assigner

CPANSec redhat root Scorecard

References

3 references

URL	Tags
https://github.com/nanoscopic/perl-HTML-Bare/pull/1	issue-tracking
https://security.metacpan.org/patches/H/HTML-Bare…	patch
http://www.openwall.com/lists/oss-security/2026/07/16/4

Impacted products

1 product

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

Show details on NVD website

JSON

To clipboard

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EUVD-2026-338442

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:52

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

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  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:52:58.378222+00:00",
  "id": "EUVD-2026-338442"
}

FKIE_CVE-2026-13397

Vulnerability from fkie_nvd - Published: 2026-07-16 17:16 - Updated: 2026-07-17 14:17

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/nanoscopic/perl-HTML-Bare/pull/1
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://security.metacpan.org/patches/H/HTML-Bare/0.02/CVE-2026-13397-r1.patch
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/07/16/4

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-XFXG-9RJG-HQRW

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

Details

HTML::Bare versions through 0.04 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.

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

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

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      "type": "CVSS_V3"
    }
  ]
}

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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-13397 (GCVE-0-2026-13397)

EUVD-2026-338442

FKIE_CVE-2026-13397

GHSA-XFXG-9RJG-HQRW

Tags

Sightings

Nomenclature

Related by attack behaviour