CVE-2026-34216 — Remote Code Execution
CVE-2026-34216 — CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior, the admin settings update endpoint accepted a fully qualified class name directly from user-supplied request input and used it for dynamic static method calls and object instantiation witho
What This Means For You
- If your environment is affected by CWE-470, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-34216 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-34216 - CtrlPanel Admin Settings RCE via Class Instantiation
title: CVE-2026-34216 - CtrlPanel Admin Settings RCE via Class Instantiation
id: scw-2026-05-19-ai-1
status: experimental
level: critical
description: |
Detects the specific endpoint and parameter used in CtrlPanel versions 1.1.1 and prior to exploit CVE-2026-34216. The 'settings_class' parameter is used to supply a fully qualified class name for dynamic instantiation, leading to Remote Code Execution. This rule targets the direct indicator of the vulnerability's exploitation path.
author: SCW Feed Engine (AI-generated)
date: 2026-05-19
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-34216/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/admin/settings/update'
cs-method:
- 'POST'
cs-uri-query|contains:
- 'settings_class='
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-34216 | vulnerability | CVE-2026-34216 |
| CWE-470 | weakness | CWE-470 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 20, 2026 at 00:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
Believe this infringes your rights? Submit a takedown request.
Related coverage
CVE-2026-20240 — Denial of Service
CVE-2026-20240 — In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, and 9.3.2411.129,...
Splunk Enterprise, Cloud Vulnerability Exposes Session Cookies, Sensitive Data
CVE-2026-20239 — In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a...
CVE-2026-20238 — In Splunk AI Toolkit versions below 5.7.3, a low-privileged
CVE-2026-20238 — In Splunk AI Toolkit versions below 5.7.3, a low-privileged user that does not hold the 'admin' or 'power' roles could access confidential data...