{"id":"UBUNTU-CVE-2026-10649","details":"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.","modified":"2026-06-24T11:01:15.060454214Z","published":"2026-06-16T17:16:00Z","upstream":["CVE-2026-10649"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-10649"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-10649"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2026/06/16/6"},{"type":"REPORT","url":"https://github.com/clusterLabs/pacemaker/pull/4128"}],"affected":[{"package":{"name":"pacemaker","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/pacemaker?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.12-0ubuntu2","1.1.12-0ubuntu3","1.1.14~rc4-2ubuntu1","1.1.14-1ubuntu1","1.1.14-1ubuntu2","1.1.14-2ubuntu1","1.1.14-2ubuntu1.1","1.1.14-2ubuntu1.2","1.1.14-2ubuntu1.3","1.1.14-2ubuntu1.4","1.1.14-2ubuntu1.5","1.1.14-2ubuntu1.6","1.1.14-2ubuntu1.7","1.1.14-2ubuntu1.8","1.1.14-2ubuntu1.9"],"ecosystem_specific":{"binaries":[{"binary_name":"libcib4","binary_version":"1.1.14-2ubuntu1.9"},{"binary_version":"1.1.14-2ubuntu1.9","binary_name":"libcrmcluster4"},{"binary_version":"1.1.14-2ubuntu1.9","binary_name":"libcrmcommon3"},{"binary_name":"libcrmservice3","binary_version":"1.1.14-2ubuntu1.9"},{"binary_name":"liblrmd1","binary_version":"1.1.14-2ubuntu1.9"},{"binary_name":"libpe-rules2","binary_version":"1.1.14-2ubuntu1.9"},{"binary_name":"libpe-status10","binary_version":"1.1.14-2ubuntu1.9"},{"binary_name":"libpengine10","binary_version":"1.1.14-2ubuntu1.9"},{"binary_version":"1.1.14-2ubuntu1.9","binary_name":"libstonithd2"},{"binary_version":"1.1.14-2ubuntu1.9","binary_name":"libtransitioner2"},{"binary_name":"pacemaker","binary_version":"1.1.14-2ubuntu1.9"},{"binary_version":"1.1.14-2ubuntu1.9","binary_name":"pacemaker-cli-utils"},{"binary_name":"pacemaker-common","binary_version":"1.1.14-2ubuntu1.9"},{"binary_version":"1.1.14-2ubuntu1.9","binary_name":"pacemaker-remote"},{"binary_name":"pacemaker-resource-agents","binary_version":"1.1.14-2ubuntu1.9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10649.json"}},{"package":{"name":"pacemaker","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/pacemaker?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.16-1ubuntu1","1.1.18~rc3-1ubuntu1","1.1.18~rc4-1ubuntu1","1.1.18-0ubuntu1","1.1.18-0ubuntu1.1","1.1.18-0ubuntu1.2","1.1.18-0ubuntu1.3"],"ecosystem_specific":{"binaries":[{"binary_name":"libcib4","binary_version":"1.1.18-0ubuntu1.3"},{"binary_version":"1.1.18-0ubuntu1.3","binary_name":"libcrmcluster4"},{"binary_name":"libcrmcommon3","binary_version":"1.1.18-0ubuntu1.3"},{"binary_name":"libcrmservice3","binary_version":"1.1.18-0ubuntu1.3"},{"binary_name":"liblrmd1","binary_version":"1.1.18-0ubuntu1.3"},{"binary_version":"1.1.18-0ubuntu1.3","binary_name":"libpe-rules2"},{"binary_name":"libpe-status10","binary_version":"1.1.18-0ubuntu1.3"},{"binary_version":"1.1.18-0ubuntu1.3","binary_name":"libpengine10"},{"binary_name":"libstonithd2","binary_version":"1.1.18-0ubuntu1.3"},{"binary_name":"libtransitioner2","binary_version":"1.1.18-0ubuntu1.3"},{"binary_name":"pacemaker","binary_version":"1.1.18-0ubuntu1.3"},{"binary_version":"1.1.18-0ubuntu1.3","binary_name":"pacemaker-cli-utils"},{"binary_version":"1.1.18-0ubuntu1.3","binary_name":"pacemaker-common"},{"binary_name":"pacemaker-remote","binary_version":"1.1.18-0ubuntu1.3"},{"binary_name":"pacemaker-resource-agents","binary_version":"1.1.18-0ubuntu1.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10649.json"}},{"package":{"name":"pacemaker","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/pacemaker?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.1-4ubuntu2","2.0.1-5ubuntu1","2.0.1-5ubuntu5","2.0.3-3ubuntu1","2.0.3-3ubuntu3","2.0.3-3ubuntu4","2.0.3-3ubuntu4.1","2.0.3-3ubuntu4.2","2.0.3-3ubuntu4.3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.3-3ubuntu4.3","binary_name":"libcib27"},{"binary_name":"libcrmcluster29","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"libcrmcommon34","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"libcrmservice28","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"liblrmd28","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"libpacemaker1","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"libpe-rules26","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"libpe-status28","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"libstonithd26","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"pacemaker","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"pacemaker-cli-utils","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"pacemaker-common","binary_version":"2.0.3-3ubuntu4.3"},{"binary_name":"pacemaker-remote","binary_version":"2.0.3-3ubuntu4.3"},{"b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