CVE-2026-41206 PySpector has a Plugin Code Execution Bypass via Incomplete Static Analysis in PluginSecurity.validate_plugin_code
An attacker can achieve arbitrary code execution in PySpector by supplying a malicious plugin that bypasses incomplete static analysis checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-41206?
CVE-2026-41206 is a medium-severity code injection vulnerability in ParzivalHack PySpector, published on 23 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
PySpector is a static analysis security testing (SAST) Framework engineered for modern Python development workflows. The plugin security validator in PySpector uses AST-based static analysis to prevent dangerous code from being loaded as plugins. Prior to version 0.1.8, the blocklist implemented in `PluginSecurity.validate_plugin_code` is incomplete and can be bypassed using several Python constructs that are not checked. An attacker who can supply a plugin file can achieve arbitrary code execution within the PySpector process when that plugin is installed and executed. Version 0.1.8 fixes the issue.
Weakness: CWE-184
Which versions are affected by CVE-2026-41206?
3 open source packages ship an affected version, including pyspector. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pyspector PyPI | All versions | 0.1.8 |
pyspector PyPI | All versions | 0.1.8 |
pyspector PyPI | All versions | 0.1.8 |
Products include Parzivalhack Pyspector.
How do I fix CVE-2026-41206?
Upgrade pyspector to 0.1.8 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-41206 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41206 exists.
Other vulnerabilities in ParzivalHack PySpector
Sources
Also known as GHSA-vp22-38m5-r39r, PYSEC-2026-3031.