Quick answers
- Is CVE-2026-34216 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-34216 being exploited in the wild.
- How severe is CVE-2026-34216?
- Medium severity, with a CVSS score of 6.6, published 19 May 2026.
- Which products and versions are affected?
- CtrlPanel-gg CtrlPanel <= 1.1.1.
- Is there a fix for CVE-2026-34216?
- A patch was published on 2026-04-24: Fixed in version 1.2.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-34216 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-34216?
- Check whether you run CtrlPanel-gg CtrlPanel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An unsafe reflection vulnerability exists in `app/Http/Controllers/Admin/SettingsController.php` within the `update()` method. The application reads the `settings_class` parameter directly from an HTTP request and uses it to instantiate objects and call static methods (e.g., `new $settings_class()`) without validation. An authenticated attacker with administrative privileges can provide any class name available via the Composer autoloader. By leveraging PHP magic methods such as `__construct`, `__toString`, or `__wakeup` in available gadget chains, an attacker can achieve remote code execution (RCE). The vulnerability is mitigated in version 1.2.0 by implementing a server-side map that validates the requested class against an allowlist of legitimate settings classes.
Affected products
- CtrlPanel-gg CtrlPanel <= 1.1.1
Timeline
- 2026-04-24: patched: Fixed in version 1.2.0
- 2026-05-08: advisory: GitHub Security Advisory GHSA-vcg3-fjrx-rg5q published
- 2026-05-19: disclosed: CVE-2026-34216 published to NVD