CVE-2026-41206

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.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0002

Probability of exploitation

0.05%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-184 CWE-184

Affected Products

Vendor	Product	Versions
parzivalhack	pyspector	< 0.1.8

References

Advisories & Patches

https://github.com/ParzivalHack/PySpector/commit/3c9547157fc07396f22b26b3484a9a91eba98555 https://github.com/ParzivalHack/PySpector/commit/4e279e078c53d760fd321ff9b698d683c65ccb8e https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-vp22-38m5-r39r https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-vp22-38m5-r39r

Exploits

https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-vp22-38m5-r39r https://github.com/ParzivalHack/PySpector/security/advisories/GHSA-vp22-38m5-r39r

Frequently Asked Questions

What is CVE-2026-41206? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-41206? +

CVE-2026-41206 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0002, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41206? +

CVE-2026-41206 affects products from parzivalhack, specifically: pyspector. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41206? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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