Deserialization of Untrusted Data

Overview picklescan is a Security scanner detecting Python Pickle files performing suspicious actions Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the operator.methodcaller function. An attacker can execute arbitrary code by crafting a malicious pickle...

EUVD-2025-205779

Picklescan is vulnerable to RCE via missing detection when calling built-in python operator.methodcaller...

GHSA-955R-X9J8-7RHH Picklescan is vulnerable to RCE via missing detection when calling built-in python _operator.methodcaller

Summary Picklescan uses operator.methodcaller, which is a built-in python library function to execute remote pickle files. Details The attack payload executes in the following steps: - First, the attacker crafts the payload by calling to operator.methodcaller function in reduce method - Then when...

Picklescan is vulnerable to RCE via missing detection when calling built-in python _operator.methodcaller

Summary Picklescan uses operator.methodcaller, which is a built-in python library function to execute remote pickle files. Details The attack payload executes in the following steps: - First, the attacker crafts the payload by calling to operator.methodcaller function in reduce method - Then when...

Deserialization of Untrusted Data

Overview picklescan is a Security scanner detecting Python Pickle files performing suspicious actions Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the operator.methodcaller function, which is a built-in Python library function used to execute a remote...

GHSA-X843-G5MX-G377 Picklescan is vulnerable to RCE through missing detection when calling built-in python operator.methodcaller

Summary Picklescan uses operator.methodcaller, which is a built-in python library function to execute remote pickle files. Details The attack payload executes in the following steps: - First, the attacker crafts the payload by calling the operator.methodcaller function in method reduce. - Then,...

Picklescan is vulnerable to RCE through missing detection when calling built-in python operator.methodcaller

Summary Picklescan uses operator.methodcaller, which is a built-in python library function to execute remote pickle files. Details The attack payload executes in the following steps: - First, the attacker crafts the payload by calling the operator.methodcaller function in method reduce. - Then,...

Picklescan has Incomplete List of Disallowed Inputs

Summary Currently picklescanner only blocks some specific functions of the pydoc and operator modules. Attackers can use other functions within these allowed modules to go through undetected and achieve RCE on the final user. Particularly pydoc.locate: Can dynamically resolve and import arbitrary...

GHSA-84R2-JW7C-4R5Q Picklescan has Incomplete List of Disallowed Inputs

Summary Currently picklescanner only blocks some specific functions of the pydoc and operator modules. Attackers can use other functions within these allowed modules to go through undetected and achieve RCE on the final user. Particularly pydoc.locate: Can dynamically resolve and import arbitrary...

Internet Bug Bounty: use of uninitialized variables in operator.methodcaller

I described this vulnerability in detail in a mail to the PSRT. A copy of my email, plus the fix for this issue, can be found here: https://bugs.python.org/issue27783...