DEBIAN-CVE-2026-83603

Source
https://security-tracker.debian.org/tracker/CVE-2026-83603
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-83603.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-83603
Upstream
Published
2026-09-22T17:17:26Z
Modified
2026-09-24T08:47:32Z
Severity
  • 8.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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

Affected packages

Debian:12 / netdata

Package

Name
netdata
Purl
pkg:deb/debian/netdata?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.37.1-2
1.38.0-1
1.38.1-1
1.39.0-1
1.39.1-1
1.39.1-2
1.40.0-1
1.40.0-2
1.40.1-1
1.41.0-1
1.42.0-1
1.42.1-1
1.42.2-1
1.42.3-1
1.42.4-1
1.43.0-1
1.43.1-1
1.43.2-1
1.44.3-1
1.44.3-2
1.46.3-1
1.46.3-2
1.47.0-1
1.47.1-1
1.47.2-1
1.47.5-1
2.*
2.0.3+dfsg-1
2.0.3+dfsg-2
2.0.3+dfsg-3
2.0.3+dfsg-4
2.0.3+dfsg-5

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-83603.json"