#1140188 pacemaker: CVE-2026-10649

Package:
src:pacemaker
Source:
src:pacemaker
Submitter:
Salvatore Bonaccorso
Date:
2026-06-22 17:37:04 UTC
Severity:
normal
Tags:
#1140188#5
Date:
2026-06-17 05:33:02 UTC
From:
To:
Hi,

The following vulnerability was published for pacemaker.

CVE-2026-10649[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-10649
https://www.cve.org/CVERecord?id=CVE-2026-10649
[1] https://github.com/clusterLabs/pacemaker/pull/4128
[2] https://www.openwall.com/lists/oss-security/2026/06/16/6

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore