CVE-2026-10649
Discovered by AISLEPUBLISHEDCWE-190
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.
CVSS Base Scores
CVSS v3.1(Primary)
8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:3.0.1-5.el10_2.1 | unaffected |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:3.0.0-5.3.el10_0 | unaffected |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:1.1.23-1.el7_9.2 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | 0:2.1.7-5.6.el8_10 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:2.0.5-9.el8_4.12 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:2.0.5-9.el8_4.12 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:2.1.2-4.el8_6.11 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | 0:2.1.2-4.el8_6.11 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:2.1.5-9.7.el8_8 | unaffected |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:2.1.5-9.7.el8_8 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | 0:2.1.10-3.el9_8 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:2.1.5-9.el9_2.7 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 0:2.1.7-5.5.el9_4 | unaffected |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:2.1.9-1.4.el9_6 | unaffected |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — |
Credits
- This issue was discovered by AISLE Research and Found by AISLE in partnership with Red Hat.
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