{"id":"CVE-2026-10649","title":"A flaw was found in Pacemaker","summary":"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, …","severity":"high","cvss":8.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","cwe":["CWE-190","CWE-190"],"published":"2026-06-16","updated":"2026-07-16","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-10649","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:39322","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:39323","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:40833","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-10649","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2462817","label":"secalert@redhat.com"},{"url":"https://github.com/clusterLabs/pacemaker/pull/4128","label":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/16/6","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2026:39322","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:39323","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-10649","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2462817","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10649.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"tags":["nvd"],"epss":0.00561,"epssPercentile":0.45229,"ingestedAt":"2026-07-16T15:55:32.349Z","slug":"CVE-2026-10649","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":47.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}