Alerts This Week
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Alerts This Week
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Fedora 44 Alertmanager Important Denial of Service Fix 2026-87b103f151

fedora
Calendar Grey June 20, 2026
Dist Fedora Esm H88
Prometheus Alertmanager update on Fedora 44 addresses DoS due to file descriptor leak. Install fixes to ensure stability.
Update to 0.33.0

Summary

The Alertmanager handles alerts sent by client applications such as the

Prometheus server. It takes care of deduplicating, grouping, and routing them to

the correct receiver integrations such as email, PagerDuty, or OpsGenie. It also

takes care of silencing and inhibition of alerts.

Update Information:

Update to 0.33.0

Topics%20covered

Topics Covered

security advisory denial of service fedora update important alertmanager

Change Log

* Fri Jun 12 2026 Mikel Olasagasti Uranga - 0.33.0-1 - Update to 0.33.0 - Closes rhbz#2485517

References


[ 1 ] Bug #2486249 - CVE-2026-45287 alertmanager: OpenTelemetry-Go: Denial of Service due to file descriptor leak [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2486249

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-87b103f151' 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: alertmanager
Product: Fedora 44
Version: 0.33.0
Release: 1.fc44
URL: https://github.com/prometheus/alertmanager
Summary: Prometheus Alertmanager

Topics%20covered

Topics Covered

security advisory denial of service fedora update important alertmanager

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