CVE-2026-41206Public exploit

Code execution via incomplete plugin blocklist

Published Apr 23, 2026 · Updated Apr 23, 2026

Arbitrary code execution in ParzivalHack PySpector before 0.1.8 allows local users to run commands through a crafted plugin file. PluginSecurity.validate_plugin_code checks an incomplete fatal_calls blocklist, missing importlib, ctypes, dunder traversal, built-ins access, CodeType, and complex aliases. Exploitation requires supplying a plugin and inducing its installation and execution; commands run with the PySpector process's privileges.

CVSS severity6.9
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary code execution in ParzivalHack PySpector before 0.1.8 allows local users to run commands through a crafted plugin file. PluginSecurity.validate_plugin_code checks an incomplete fatal_calls blocklist, missing importlib, ctypes, dunder traversal, built-ins access, CodeType, and complex aliases. Exploitation requires supplying a plugin and inducing its installation and execution; commands run with the PySpector process's privileges.

The record

CVE
CVE-2026-41206
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
ParzivalHack
Product
PySpector
Classifications
CWE-184, T1204.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.1.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ParzivalHack · PySpectorversion=< 0.1.8

Published CVSS scores

6.9GitHub, Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-184Incomplete List of Disallowed Inputs
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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