CVE-2026-10649A flaw was found in Pacemaker.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
A flaw was found in Pacemaker. An unauthenticated remote attacker can exploit an integer overflow vulnerability in the remote message decompression process. By sending a specially crafted compressed remote message before authentication, an attacker can cause memory corruption, leading to a denial of service (DoS) in the CIB remote listener. This can result in the affected service crashing.
- CVSS
- 8.6 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
- Weakness (CWE)
- CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://access.redhat.com/errata/RHSA-2026:39322
- https://access.redhat.com/errata/RHSA-2026:39323
- https://access.redhat.com/errata/RHSA-2026:40833
- https://access.redhat.com/errata/RHSA-2026:41041
- https://access.redhat.com/errata/RHSA-2026:41042
- https://access.redhat.com/errata/RHSA-2026:41043
- https://access.redhat.com/errata/RHSA-2026:41044
- https://access.redhat.com/errata/RHSA-2026:42041
- https://access.redhat.com/errata/RHSA-2026:42075
- https://access.redhat.com/errata/RHSA-2026:42076
- https://access.redhat.com/errata/RHSA-2026:43606
- https://access.redhat.com/security/cve/CVE-2026-10649
- https://bugzilla.redhat.com/show_bug.cgi?id=2462817
- https://github.com/clusterLabs/pacemaker/pull/4128
- http://www.openwall.com/lists/oss-security/2026/06/16/6
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10649.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.