---
id: GHSA-g7vj-qw6x-g3p8
title: >-
  Duplicate Advisory: PickleScan has multiple stdlib modules with direct RCE not
  in blocklist
summary: >-
  Duplicate Advisory: PickleScan has multiple stdlib modules with direct RCE not
  in blocklist
severity: critical
cvss: 9.8
cwe:
  - CWE-184
vendor: picklescan
product: picklescan
ecosystem: pip
affected:
  - picklescan < 1.0.4
patched:
  - picklescan 1.0.4
published: '2026-06-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T21:26:43Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-g7vj-qw6x-g3p8'
references:
  - url: >-
      https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g38g-8gr9-h9xp
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56315'
  - url: >-
      https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-unblocked-standard-library-modules
  - url: 'https://github.com/advisories/GHSA-g7vj-qw6x-g3p8'
tags:
  - ghsa
  - pip
ingestedAt: '2026-09-23T21:33:13.540Z'
---

## Overview

### Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-g38g-8gr9-h9xp. This link is maintained to preserve external references.

### Original Description
picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support, _aix_support, _pyrepl.pager, and imaplib) exposing eight functions that provide direct arbitrary command execution. Attackers can craft malicious pickle files importing these unblocked modules to achieve remote code execution while bypassing picklescan's safety validation entirely.

## Affected packages

- `picklescan < 1.0.4`

## Remediation

Upgrade to a patched release:

- `picklescan 1.0.4`