{"id":"CVE-2026-83603","published":"2026-09-22T17:17:26.550","lastModified":"2026-09-23T18:28:25.093","description":"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.","cvssScore":8.4,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","cwes":["CWE-73","CWE-502"],"vendors":[],"products":[],"references":[{"url":"https://github.com/netdata/netdata/commit/9bced8d46464bd0fe01b0b5f8c63c4ac24e9b060","tags":[]},{"url":"https://github.com/netdata/netdata/pull/22745","tags":[]},{"url":"https://github.com/netdata/netdata/releases/tag/v2.10.4","tags":[]},{"url":"https://github.com/netdata/netdata/security/advisories/GHSA-qwh9-pq27-993w","tags":[]}],"exploitRefs":[{"url":"https://github.com/netdata/netdata/commit/9bced8d46464bd0fe01b0b5f8c63c4ac24e9b060","tags":[]},{"url":"https://github.com/netdata/netdata/pull/22745","tags":[]},{"url":"https://github.com/netdata/netdata/releases/tag/v2.10.4","tags":[]},{"url":"https://github.com/netdata/netdata/security/advisories/GHSA-qwh9-pq27-993w","tags":[]}],"hasPoc":true,"ai":null}