CVE-2026-13397
Last modified
CVE-2026-13397 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| CODECHILD | HTML::Bare | <= 0.04 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-13397?
How severe is CVE-2026-13397?
How do I fix CVE-2026-13397?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-13385An Improper Validation of Integrity Check Value and Improper…9.5
- CVE-2026-13389The webtoffee-cookie-consent WordPress plugin before 3.5.3 d…6.5
- CVE-2026-13390The Events Calendar WordPress plugin before 6.16.5.1 does no…5.3
- CVE-2026-13392The ElementsKit Elementor Addons WordPress plugin before 3.…7.2
- CVE-2026-13393The ElementsKit Elementor Addons WordPress plugin before 3.…3.5
- CVE-2026-13395The Online Scheduling and Appointment Booking System WordPr…8.6
- CVE-2026-13399The Payment Plugins for PayPal WooCommerce WordPress plugin …7.5
- CVE-2026-1340A code injection in Ivanti Endpoint Manager Mobile allowing …9.8
- CVE-2026-13400Simply Schedule Appointments is vulnerable to unauthenticate…6.1
- CVE-2026-13401XML::Bare versions through 0.53 for Perl will hang in an inf…7.5
- CVE-2026-13402The Royal Addons for Elementor WordPress plugin before 1.7.…5.3
- CVE-2026-1341Avation Light Engine Pro exposes its configuration and contr…9.3
Are you affected by CVE-2026-13397?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST