CVE-2026-83598 Netdata: Local Privilege Escalation in Netdata Agent Windows installer via PowerShell Profile Hijack in MSI Repair
A local attacker can escalate privileges to SYSTEM by placing malicious commands in their PowerShell profile, which are executed during the Netdata Agent MSI repair process.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-83598?
CVE-2026-83598 is a high-severity vulnerability in netdata, published on 22 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Netdata is an open source observability tool. From rom 2.0.0 until 2.10.4, during Netdata Windows Agent MSI repair, powershell.exe runs as SYSTEM without -NoProfile and loads %USERPROFILE%\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1 from the low-privileged user who initiated repair. Commands placed in that profile before repair therefore execute with SYSTEM privileges. This vulnerability is fixed in 2.10.4.
Which versions are affected by CVE-2026-83598?
How do I fix CVE-2026-83598?
Upgrade to a fixed version.
Is CVE-2026-83598 being exploited?
There is no known exploitation of CVE-2026-83598 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-83598, GHSA-8hxv-2mg6-ggw5, MINI-j9w4-j5c4-57wp, MINI-q7hg-mgwf-f3m4, UBUNTU-CVE-2026-83598.