Integer Overflow or Wraparound Affecting pacemaker-cli package, versions <0:2.1.7-5.6.el8_10


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.56% (44th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PACEMAKERCLI-17988903
  • published16 Jul 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-10649  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 pacemaker-cli to version 0:2.1.7-5.6.el8_10 or higher.
This issue was patched in ALSA-2026:39322.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pacemaker-cli package and not the pacemaker-cli package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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

version 3.1