---
id: "CVE-2026-105476"
kind: "vulnerability"
aliases: ["CVE-2026-105476"]
title: "cPanel: link resolution flaw lets a logged-in user write root-owned files"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["cpanel", "infrastructure", "self-hosted", "shared-hosting"]
not_affected_if: ["no-cpanel", "no-untrusted-accounts"]
published_at: "2026-11-02T21:17:22+00:00"
first_seen_at: "2026-11-02T21:35:40+00:00"
updated_at: "2026-11-02T21:37:21+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105476", "first_seen_at": "2026-11-02T21:35:40+00:00"}]
---

# cPanel: link resolution flaw lets a logged-in user write root-owned files

cPanel has an improper link resolution flaw before file access that lets an authenticated remote user write arbitrary root-owned files. An attacker who gets an account can use this to escalate privileges on the server.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Confirm whether the server runs cPanel and which version it is installed at, using the cPanel version shown in WHM
- Check the cPanel version against the affected range in the NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-105476)

## Timeline

- 2026-11-02T21:35:40+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105476

## From the sources

Improper link resolution before file access in cPanel allows remote authenticated users to write arbitrary root-owned files and escalate privileges.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_