CVE-2026-10649
High
Description
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.
SeverityHigh
CVSS8.6
Exploit probability47. percentile0.6%
Product
Red Hat Enterprise Linux 10
PublishedJun 16, 2026
First seenJun 16, 2026
Weakness typeCWE-190Integer overflow
How to fix
Vendor advisories
- access.redhat.com/errata/RHSA-2026:39322
- access.redhat.com/errata/RHSA-2026:39323
- access.redhat.com/errata/RHSA-2026:40833
- access.redhat.com/errata/RHSA-2026:41041
- access.redhat.com/errata/RHSA-2026:41042
- access.redhat.com/errata/RHSA-2026:41043
- access.redhat.com/errata/RHSA-2026:41044
- access.redhat.com/errata/RHSA-2026:42041
- access.redhat.com/errata/RHSA-2026:42075
- access.redhat.com/errata/RHSA-2026:42076
- access.redhat.com/errata/RHSA-2026:43606
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support | No range specified | — |
| enterprise_linux 7 | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_aus 8.4 | No range specified | — |
| rhel_aus 8.6 | No range specified | — |
| rhel_e4s 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_e4s 9.2 | No range specified | — |
| rhel_e4s 9.4 | No range specified | — |
| rhel_eus 9.6 | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.