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Fedora 43 perl-Cpanel-JSON-XS Critical DoS Fix FEDORA-2026-d88c7fac8c

fedora
Calendar Grey June 5, 2026
Dist Fedora Esm H88
Addressing critical security issues in perl-Cpanel-JSON-XS for Fedora with resolutions for recent vulnerabilities.
This update addresses a number of bugs including these security issues: Fix BOM-shift PV-corruption SIGABRT (CVE-2026-9516) Fix dupkeys_as_arrayref type confusion (CVE-2026-9334)

Summary

This module converts Perl data structures to JSON and vice versa. Its

primary goal is to be correct and its secondary goal is to be fast. To

reach the latter goal it was written in C.

Update Information:

This update addresses a number of bugs including these security issues: Fix BOM-shift PV-corruption SIGABRT (CVE-2026-9516) Fix dupkeys_as_arrayref type confusion (CVE-2026-9334)

Change Log

* Thu May 28 2026 Paul Howarth - 4.41-1 - Update to 4.41 - Fix BOM-shift PV-corruption SIGABRT (CVE-2026-9516) - Fix dupkeys_as_arrayref type confusion (CVE-2026-9334) - Fix incr_parse single-quote string delimiter (GH#245) - Fix a one-byte out-of-bounds heap read reachable via allow_barekey on truncated input (GH#244) * Sat Jan 17 2026 Fedora Release Engineering - 4.40-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild

References


[ 1 ] Bug #2484331 - CVE-2026-9334 perl-Cpanel-JSON-XS: perl-Cpanel-JSON-XS: Denial of Service via type confusion with duplicate JSON object keys [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2484331 [ 2 ] Bug #2484333 - CVE-2026-9516 perl-Cpanel-JSON-XS: Cpanel::JSON::XS: Denial of Service via UTF-8 BOM prefixed input [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2484333

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-d88c7fac8c' 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
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Name: perl-Cpanel-JSON-XS
Product: Fedora 43
Version: 4.41
Release: 1.fc43
Summary: JSON::XS for Cpanel, fast and correct serializing

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