CVE-2026-41206: PySpector has a Plugin Code Execution Bypass via Incomplete Static Analysis in PluginSecurity.validate_plugin_code

CVE-2026-41206 · Severity: high · CVSS 7.8 · Published 2026-04-23

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.

Technologies: pyspector (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-41206 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-41206 being exploited in the wild.
How severe is CVE-2026-41206?
High severity, with a CVSS score of 7.8, published 23 April 2026.
Which products and versions are affected?
pyspector (PyPI) <= 0.1.7, ECOSYSTEM:introduced=0,fixed=0.1.8.
Is there a fix for CVE-2026-41206?
Yes. pyspector (PyPI): upgrade to 0.1.8 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-41206?
Check whether you run Parzivalhack Pyspector or pyspector (PyPI) 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.

How to fix

  • pyspector (PyPI): upgrade to 0.1.8 or later
    pip install "pyspector>=0.1.8"

Affected products

  • Parzivalhack Pyspector
  • pyspector (PyPI) <= 0.1.7, ECOSYSTEM:introduced=0,fixed=0.1.8

Identifiers

  • CVE-2026-41206
  • GHSA-vp22-38m5-r39r
  • PYSEC-2026-3031

References

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