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Fedora 43 perl-HTML-Gumbo Important Memory Disclosure Vuln 2026-a457bf78b4

fedora
Calendar Grey July 10, 2026
Dist Fedora Esm H88
This update addresses a critical heap memory disclosure issue in Fedora's perl-HTML-Gumbo impacting version 0.19.
This package provides the Perl module HTML::Gumbo

Summary

Gumbo is an implementation of the HTML5 parsing algorithm implemented as a

pure C99 library with no outside dependencies.

Update Information:

This package provides the Perl module HTML::Gumbo. Versions before 0.19 disclose heap memory via type confusion. Support for the element was added to libgumbo 0.10.0 in 2015, but the walk_tree function in lib/HTML/Gumbo.xs was not updated to support it. The element was treated as a text-node, where strlen() over-reads the heap block that the pointer addresses.

Topics%20covered

Topics Covered

security advisory fedora important information disclosure heap memory perl-html-gumbo

Change Log

* Sat May 30 2026 Emmanuel Seyman - 0.19-1 - Update to 0.19 - Update dependencies - Use /usr/bin/perl instead of %{__perl}

References


[ 1 ] Bug #2496536 - CVE-2025-15646 perl-HTML-Gumbo: HTML::Gumbo: Information disclosure through HTML template processing [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2496536

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-a457bf78b4' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
Medium
High
Critical

Name: perl-HTML-Gumbo
Product: Fedora 43
Version: 0.19
Release: 1.fc43
URL: https://metacpan.org/dist/HTML-Gumbo
Summary: HTML5 parser based on gumbo C library

Topics%20covered

Topics Covered

security advisory fedora important information disclosure heap memory perl-html-gumbo

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