{"id":"UBUNTU-CVE-2026-45766","details":"Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, certain NFS parser state structures were insufficiently bounded. Crafted NFS traffic may cause Suricata to consume excessive memory, potentially resulting in denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable NFS application-layer parsing if it is not needed.","modified":"2026-09-16T11:34:30Z","published":"2026-09-10T22:16:00Z","upstream":["CVE-2026-45766"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-45766"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-45766"},{"type":"REPORT","url":"https://github.com/OISF/suricata/security/advisories/GHSA-jqr4-ch38-wvm6"},{"type":"REPORT","url":"https://redmine.openinfosecfoundation.org/issues/8420"},{"type":"REPORT","url":"https://redmine.openinfosecfoundation.org/issues/8419"},{"type":"REPORT","url":"https://github.com/OISF/suricata/commit/6c63fec9cb1f7333132951240da3f3e9f0194cb9"},{"type":"REPORT","url":"https://github.com/OISF/suricata/commit/cc59c567f7f23ddf1bb03e3b09f88928bc80da6a"},{"type":"REPORT","url":"https://github.com/OISF/suricata/commit/40aede627e215d033ba2fe10ffa020053fc9aeb0"},{"type":"REPORT","url":"https://github.com/OISF/suricata/commit/f43d442251ab96adcc0bfece6919832b1dc8e9be"},{"type":"REPORT","url":"https://github.com/OISF/suricata/commit/af37786ee48e0f53a3b29d6c9776f33cee9c67f9"},{"type":"REPORT","url":"https://github.com/OISF/suricata/commit/c029c0958537224ef85f008a578265b52803021d"},{"type":"REPORT","url":"https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"},{"type":"REPORT","url":"https://redmine.openinfosecfoundation.org/issues/8418"}],"affected":[{"package":{"name":"suricata","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/suricata?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.8-1build1","2.0.9-1","2.0.10-1","2.0.10-2","2.0.11-1","3.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0-1","binary_name":"suricata"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45766.json"}},{"package":{"name":"suricata","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/suricata?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2-2ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2-2ubuntu3","binary_name":"libhtp-0.5.23-1"},{"binary_name":"suricata","binary_version":"3.2-2ubuntu3"},{"binary_version":"3.2-2ubuntu3","binary_name":"suricata-hyperscan"},{"binary_name":"suricata-oinkmaster","binary_version":"3.2-2ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45766.json"}},{"package":{"name":"suricata","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/suricata?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:6.0.4-2","1:6.0.4-3"],"ecosystem_specific":{"binaries":[{"binary_name":"suricata","binary_version":"1:6.0.4-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45766.json"}},{"package":{"name":"suricata","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/suricata?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:7.0.0-2","1:7.0.2-1","1:7.0.2-1build1","1:7.0.3-1build1","1:7.0.3-1build3"],"ecosystem_specific":{"binaries":[{"binary_name":"suricata","binary_version":"1:7.0.3-1build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45766.json"}},{"package":{"name":"suricata","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/suricata?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:7.0.10-1","1:8.0.1-3build1","1:8.0.2-1","1:8.0.2-1build1","1:8.0.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"suricata","binary_version":"1:8.0.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-45766.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}