Netdata up to 2.10.3 ndsudo csocket.py CSocket.receive socket_path privileges management

Summaryinfo

A vulnerability labeled as problematic has been found in Netdata up to 2.10.3. The impacted element is the function CSocket.receive of the file fail2ban/client/csocket.py of the component ndsudo. The manipulation of the argument socket_path results in privileges management. This vulnerability was named CVE-2026-83603. The attack needs to be approached locally. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Netdata up to 2.10.3. Affected is the function CSocket.receive of the file fail2ban/client/csocket.py of the component ndsudo. The manipulation of the argument socket_path with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-83603 since 08/31/2026. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 2.10.4 eliminates this vulnerability.

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Productinfo

Name

• Netdata

Version

• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3

Website

• Product: https://github.com/netdata/netdata/

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