CVE record · CVE-2026-10649

Pacemaker: pacemaker: denial of service via integer overflow in remote message decompression

CVSS 8.6 HighEPSS 0.0056 · 46th percentile

Published by the CVE Program (CNA: redhat) at 16 Jun 2026, 15:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10 Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:3.0.1-5.el10_2.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:3.0.0-5.3.el10_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.1.23-1.el7_9.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.7-5.6.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.0.5-9.el8_4.12 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.0.5-9.el8_4.12 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.2-4.el8_6.11 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.2-4.el8_6.11 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.5-9.7.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.5-9.7.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.10-3.el9_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.5-9.el9_2.7 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.7-5.5.el9_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.1.9-1.4.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: pacemaker https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 5 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2026-10649
CNA: redhat
Weakness (CWE): CWE-190
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Memory corruption
Published: 16 Jun 2026
Updated: 4 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.6	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H	CNA (redhat)Used for this record
8.6	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H	ADP (redhat-SADP)

CISA KEV Not listed.
EPSS 0.0056, the 46th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

16 Jun 2026, 15:57 UTC Confirmed by the CVE List
16 Jun 2026, 17:16 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:39322 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:39323 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:40833 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:41041 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:41042 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:41043 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:41044 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:42041 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:42075 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:42076 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:43606 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-10649 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2462817 issue-trackingredhat
github.com/clusterLabs/pacemaker/pull/4128

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.