CVE-2026-10649 | A flaw was found in Pacemaker. An unauthenticated remote att… | CVSS 8.6 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.

Metadata

CVE ID: CVE-2026-10649
State: PUBLISHED
Assigner: redhat
Reserved: 2026-06-02 15:15 UTC
Published: 2026-06-16 15:57 UTC
Last updated: 2026-06-17 13:50 UTC
Primary CWE: CWE-190
Integer Overflow or Wraparound
Vendor / Product: Red Hat / Red Hat Enterprise Linux 10
Sources: cve.org · NVD

Severity & Metrics

8.6 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: partial

Affected products (6)

Vendor	Product	Platform	Versions
Red Hat	Red Hat Enterprise Linux 10	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—

Weakness (CWE)

CWE	Source	Description
CWE-190	cna	Integer Overflow or Wraparound

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.6	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

References (3)