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Alerts This Week
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Fedora 44 perl-Mojolicious Critical CSRF Attack Mitigation 2026-4334fd85bc

fedora
Calendar Grey July 27, 2026
Scroller Fedora
Mojolicious 9.48 addresses a critical CSRF token issue by masking tokens with fresh random values. Update recommended.
The Fedora update for perl-Mojolicious 9.48 addresses a security issue with CSRF tokens vulnerable to BREACH attacks by masking tokens with a fresh random value for each request.

Summary

Back in the early days of the web there was this wonderful Perl library

called CGI, many people only learned Perl because of it. It was simple

enough to get started without knowing much about the language and powerful

enough to keep you going, learning by doing was much fun. While most of the

techniques used are outdated now, the idea behind it is not. Mojolicious is

a new attempt at implementing this idea using state of the art technology.

Update Information:

Mojolicious 9.48 fixes a security issue where CSRF tokens were vulnerable to BREACH attacks. Tokens are now masked with a fresh random value on every request, instead of being reused for the whole lifetime of a session.

Topics%20covered

Topics Covered

security advisory fedora information disclosure breach CSRF perl-Mojolicious

Change Log

* Tue Jul 14 2026 Emmanuel Seyman - 9.48-1 - Update to 9.48

References


[ 1 ] Bug #2500953 - CVE-2026-15747 perl-Mojolicious: Mojolicious: Information disclosure via BREACH compression oracle [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2500953

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-4334fd85bc' 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-Mojolicious
Product: Fedora 44
Version: 9.48
Release: 1.fc44
URL: https://metacpan.org/release/Mojolicious
Summary: A next generation web framework for Perl

Topics%20covered

Topics Covered

security advisory fedora information disclosure breach CSRF perl-Mojolicious

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