PT-2026-49723 · Red Hat · Red Hat Enterprise Linux 10+5

Found By · Published 2026-06-16 · Updated 2026-06-16 · CVE-2026-10649

NVD

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

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.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-10649

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Red Hat Openshift Container Platform 4

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-10649 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-10649 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2462817 · Note
• https://github.com/clusterLabs/pacemaker/pull/4128 · Note