CVE-2026-33139Public exploit

Code execution via indirect plugin calls

Published Mar 20, 2026 · Updated Mar 20, 2026

Security validation bypass in ParzivalHack PySpector 0.1.6 and earlier allows attackers to execute code through a malicious plugin. In plugin_system.py, resolve_name() returns no name for an indirect getattr() call, so validate_plugin_code() skips its dangerous-call check. Exploitation requires a user to install the supplied plugin with --trust and run it, granting the plugin the user's filesystem and command privileges.

CVSS severity8.3
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Security validation bypass in ParzivalHack PySpector 0.1.6 and earlier allows attackers to execute code through a malicious plugin. In plugin_system.py, resolve_name() returns no name for an indirect getattr() call, so validate_plugin_code() skips its dangerous-call check. Exploitation requires a user to install the supplied plugin with --trust and run it, granting the plugin the user's filesystem and command privileges.

The record

CVE
CVE-2026-33139
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
ParzivalHack
Product
PySpector
Classifications
CWE-184, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 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=< 0.1.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ParzivalHack · PySpectorversion=< 0.1.7

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.3GitHubCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-184Incomplete List of Disallowed Inputs
T1204.002Malicious 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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