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CVE-2026-13397— HTML::Bare versions through 0.04 for Perl will hang in an infinite loop when parsing malformed attributes

Quick assessment

Affected
CODECHILD HTML::Bare
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CODECHILD HTML::Bare是CODECHILD组织的一款处理HTML内容的Perl模块 CODECHILD HTML::Bare 0.04及之前版本存在资源管理错误漏洞，该漏洞源于解析畸形属性时在无限循环中挂起，导致资源管理错误。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.61% · P48

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
CODECHILD HTML::Bare ≤ 0.04 affected
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I. Basic Information for CVE-2026-13397

Vulnerability Information
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Vulnerability Title
HTML::Bare versions through 0.04 for Perl will hang in an infinite loop when parsing malformed attributes
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
CODECHILD HTML::Bare 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CODECHILD HTML::Bare是CODECHILD组织的一款处理HTML内容的Perl模块 CODECHILD HTML::Bare 0.04及之前版本存在资源管理错误漏洞，该漏洞源于解析畸形属性时在无限循环中挂起，导致资源管理错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
CODECHILD HTML::Bare 0 ~ 0.04 -

II. Public POCs for CVE-2026-13397

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III. Intelligence Information for CVE-2026-13397

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Patches & Fixes for CVE-2026-13397 (1)

Other References for CVE-2026-13397 (1)

Same Patch Batch · CODECHILD · 2026-07-16 · 4 CVEs total

CVE-2026-57074 XML::Bare versions through 0.53 for Perl have an unbounded character lookahead
CVE-2026-57073 HTML::Bare versions through 0.04 for Perl have an unbounded character lookahead
CVE-2026-13401 XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malfor

IV. Related Vulnerabilities

Same product: HTML::Bare
Same vendor: CODECHILD
Same weakness: CWE-835

V. Comments for CVE-2026-13397

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