CVE-2026-10649

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 Vector

References

• 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