{"id":"UBUNTU-CVE-2026-83603","details":"Netdata is an open source observability tool. Prior to 2.10.4, the setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socket_path from the low-privileged netdata service account. The account can direct root fail2ban-client to a malicious UNIX socket, and fail2ban/client/csocket.py CSocket.receive() passes the returned data to pickle.loads(), allowing attacker-controlled code to execute as root on systems with fail2ban-client installed. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.","modified":"2026-09-24T02:01:05.110184758Z","published":"2026-09-22T17:17:00Z","upstream":["CVE-2026-83603"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-83603"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-83603"},{"type":"REPORT","url":"https://github.com/netdata/netdata/commit/9bced8d46464bd0fe01b0b5f8c63c4ac24e9b060"},{"type":"REPORT","url":"https://github.com/netdata/netdata/pull/22745"},{"type":"REPORT","url":"https://github.com/netdata/netdata/releases/tag/v2.10.4"},{"type":"REPORT","url":"https://github.com/netdata/netdata/security/advisories/GHSA-qwh9-pq27-993w"}],"affected":[{"package":{"name":"netdata","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.0+dfsg-1","1.8.0+dfsg-1","1.9.0+dfsg-1","1.9.0+dfsg-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"netdata","binary_version":"1.9.0+dfsg-1ubuntu0.1~esm1"},{"binary_version":"1.9.0+dfsg-1ubuntu0.1~esm1","binary_name":"netdata-data"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"}},{"package":{"name":"netdata","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.16.1-2","1.19.0-3ubuntu1","1.19.0-3ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"netdata","binary_version":"1.19.0-3ubuntu1+esm1"},{"binary_version":"1.19.0-3ubuntu1+esm1","binary_name":"netdata-apache2"},{"binary_name":"netdata-core","binary_version":"1.19.0-3ubuntu1+esm1"},{"binary_name":"netdata-plugins-bash","binary_version":"1.19.0-3ubuntu1+esm1"},{"binary_version":"1.19.0-3ubuntu1+esm1","binary_name":"netdata-plugins-nodejs"},{"binary_version":"1.19.0-3ubuntu1+esm1","binary_name":"netdata-plugins-python"},{"binary_name":"netdata-web","binary_version":"1.19.0-3ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"}},{"package":{"name":"netdata","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.29.3-4","1.31.0-4","1.33.1-1ubuntu1","1.33.1-1ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.33.1-1ubuntu1+esm1","binary_name":"netdata"},{"binary_version":"1.33.1-1ubuntu1+esm1","binary_name":"netdata-apache2"},{"binary_version":"1.33.1-1ubuntu1+esm1","binary_name":"netdata-core"},{"binary_name":"netdata-plugins-bash","binary_version":"1.33.1-1ubuntu1+esm1"},{"binary_version":"1.33.1-1ubuntu1+esm1","binary_name":"netdata-plugins-nodejs"},{"binary_name":"netdata-plugins-python","binary_version":"1.33.1-1ubuntu1+esm1"},{"binary_name":"netdata-web","binary_version":"1.33.1-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"}},{"package":{"name":"netdata","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/netdata?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.42.1-1","1.43.1-1","1.43.2-1","1.43.2-1build1","1.43.2-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"netdata","binary_version":"1.43.2-1build2"},{"binary_name":"netdata-apache2","binary_version":"1.43.2-1build2"},{"binary_name":"netdata-core","binary_version":"1.43.2-1build2"},{"binary_name":"netdata-plugins-bash","binary_version":"1.43.2-1build2"},{"binary_version":"1.43.2-1build2","binary_name":"netdata-plugins-python"},{"binary_version":"1.43.2-1build2","binary_name":"netdata-web"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}