# 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.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** Yes
- **Published:** 22 Sep 2026
- **Updated:** 22 Sep 2026
- **Also known as:** DEBIAN-CVE-2026-83598, GHSA-8hxv-2mg6-ggw5, MINI-j9w4-j5c4-57wp, MINI-q7hg-mgwf-f3m4, UBUNTU-CVE-2026-83598

## 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.

Weakness: CWE-427 (Uncontrolled Search Path Element), CWE-269 (Improper Privilege Management)

## 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.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-83598 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-83598 in the wild and no public exploit code.

Affected product: netdata. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-83598/ (Markdown: https://insights.sbomify.com/CVE-2026-83598/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-83598
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-83598
- OSV: https://osv.dev/vulnerability/CVE-2026-83598

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-83598/
Summaries are generated and may contain mistakes; the official description above is the record.