🛡️ ALSA-2026:39323 — pacemaker
Description
Important: pacemaker security update
The Pacemaker cluster resource manager is a collection of technologies working together to maintain data integrity and application availability in the event of failures.
Security Fix(es):
- pacemaker: Pacemaker: Denial of Service via integer overflow in remote message decompression (CVE-2026-10649)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
ALSA-2026:39323 is recorded against 11 packages.
- pacemaker (fixed in 2.1.10-3.el9_8)
- pacemaker-cli (fixed in 2.1.10-3.el9_8)
- pacemaker-cluster-libs (fixed in 2.1.10-3.el9_8)
- pacemaker-cts (fixed in 2.1.10-3.el9_8)
- pacemaker-doc (fixed in 2.1.10-3.el9_8)
- pacemaker-libs (fixed in 2.1.10-3.el9_8)
- pacemaker-libs-devel (fixed in 2.1.10-3.el9_8)
- pacemaker-nagios-plugins-metadata (fixed in 2.1.10-3.el9_8)
- pacemaker-remote (fixed in 2.1.10-3.el9_8)
- pacemaker-schemas (fixed in 2.1.10-3.el9_8)
- python3-pacemaker (fixed in 2.1.10-3.el9_8)
Timeline and source
Published on 14 July 2026 and last revised on 20 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
access.redhat.com (Advisory)
access.redhat.com (Report)
bugzilla.redhat.com (Report)
errata.almalinux.org (Advisory)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| pacemaker | — | 2.1.10-3.el9_8 |
| pacemaker-cli | — | 2.1.10-3.el9_8 |
| pacemaker-cluster-libs | — | 2.1.10-3.el9_8 |
| pacemaker-cts | — | 2.1.10-3.el9_8 |
| pacemaker-doc | — | 2.1.10-3.el9_8 |
| pacemaker-libs | — | 2.1.10-3.el9_8 |
| pacemaker-libs-devel | — | 2.1.10-3.el9_8 |
| pacemaker-nagios-plugins-metadata | — | 2.1.10-3.el9_8 |
| pacemaker-remote | — | 2.1.10-3.el9_8 |
| pacemaker-schemas | — | 2.1.10-3.el9_8 |
| python3-pacemaker | — | 2.1.10-3.el9_8 |
References
Similar Threats
- High OESA-2026-2989
- High OESA-2026-2990
- High OESA-2026-2991
- Unknown ALSA-2026:39322
- High OESA-2026-2937
More ALSA 2026 advisories
Browse all of ALSA 2026 in the advisory index.
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