External Control of File Name or Path Affecting netdata package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-NETDATA-20047243
- published23 Sept 2026
- disclosed22 Sept 2026
Introduced: 22 Sep 2026
NewCVE-2026-83603 (opens in a new tab)How to fix?
There is no fixed version for Debian:12 netdata.
NVD Description
Note: Versions mentioned in the description apply only to the upstream netdata package and not the netdata package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-83603
- https://github.com/netdata/netdata/commit/9bced8d46464bd0fe01b0b5f8c63c4ac24e9b060
- https://github.com/netdata/netdata/pull/22745
- https://github.com/netdata/netdata/releases/tag/v2.10.4
- https://github.com/netdata/netdata/security/advisories/GHSA-qwh9-pq27-993w