Alerts This Week
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Alerts This Week
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Fedora 43 Pacemaker Key Integer Overflow Vulnerability Denial of Service

fedora
Calendar Grey June 26, 2026
Dist Fedora Esm H88
Update fixes integer overflow issue in Pacemaker for Fedora 43 to prevent DoS risks.
* Wed Jun 17 2026 Klaus Wenninger - 3.0.2-3 - fix CVE-2026-10649: Fix integer overflows in remote message code

Summary

Pacemaker is an advanced, scalable High-Availability cluster resource

manager.

It supports more than 16 node clusters with significant capabilities

for managing resources and dependencies.

It will run scripts at initialization, when machines go up or down,

when related resources fail and can be configured to periodically check

resource health.

Available rpmbuild rebuild options:

--with(out) : cibsecrets hardening linuxha nls pre_release profiling

Update Information:

* Wed Jun 17 2026 Klaus Wenninger - 3.0.2-3 - fix CVE-2026-10649: Fix integer overflows in remote message code

Topics%20covered

Topics Covered

security advisory denial of service fedora important integer overflow pacemaker

Change Log

* Wed Jun 17 2026 Klaus Wenninger - 3.0.2-3 - fix CVE-2026-10649: Fix integer overflows in remote message code

References


[ 1 ] Bug #2489310 - CVE-2026-10649 pacemaker: Pacemaker: Denial of Service via integer overflow in remote message decompression [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2489310

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-6a4bfb1309' 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: pacemaker
Product: Fedora 43
Version: 3.0.2
Release: 3.fc43
URL: https://www.clusterlabs.org/
Summary: Scalable High-Availability cluster resource manager

Topics%20covered

Topics Covered

security advisory denial of service fedora important integer overflow pacemaker

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