CVE-2026-83603 Netdata - Command Injection

Netdata < 2.10.4 contains a command injection caused by unsafe deserialization via a caller-controlled --socket_path in ndsudo helper, letting low-privileged attackers execute code as root, exploit requires fail2ban-client installed.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Published
22 September 2026
Updated
15 October 2026
Weakness
CWE-73

Vendor fix

Upgrade to version 2.10.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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