CVE-2026-83603 (GCVE-0-2026-83603)

Vulnerability from cvelistv5 – Published: 2026-09-22 17:01 – Updated: 2026-09-22 17:43
VLAI
Title
Netdata: Local Root via ndsudo Arbitrary socket_path → fail2ban-client Pickle RCE
Summary
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.
Severity
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 17:35 UTC
CWE
  • CWE-73 - External Control of File Name or Path
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
Impacted products
Vendor Product Version CPE status
netdata netdata Affected: < 2.10.4
guessed Create a notification for this product.
Show details on NVD website
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