PickleScan has multiple stdlib modules with direct RCE not in blocklist

Summarypicklescan v1.0.3 latest does not block at least 7 Python standard library modules that provide direct arbitrary command execution or code evaluation. A malicious pickle file importing these modules is reported as having 0 issues CLEAN scan. This enables remote code execution that bypasses...

Picklescan has a missing detection when calling built-in python idlelib.autocomplete.AutoComplete.fetch_completions

SummaryUsing idlelib.autocomplete.AutoComplete.fetchcompletions, which is a built-in python library function to execute remote pickle file. DetailsThe attack payload executes in the following steps:First, the attacker craft the payload by calling to...

Picklescan missing detection when calling built-in python library function timeit.timeit()

SummaryUsing timeit.timeit function, which is a built-in python library function to execute remote pickle file. DetailsPickle’s deserialization process is known to allow execution of function via reduce method. While Picklescan is meant to detect such exploits, this attack evades detection by...

Picklescan is vulnerable to RCE through missing detection when calling numpy.f2py.crackfortran.myeval

SummaryPicklescan uses numpy.f2py.crackfortran.myeval, which is a function in numpy to execute remote pickle files. DetailsThe attack payload executes in the following steps:- First, the attacker crafts the payload by calling the numpy.f2py.crackfortran.myeval function in its reduce method- Then,...

Picklescan missing detection when calling pytorch function torch.jit.unsupported_tensor_ops.execWrapper

SummaryUsing torch.jit.unsupportedtensorops.execWrapper function, which is a pytorch library function to execute remote pickle file. DetailsThe attack payload executes in the following steps:First, the attacker craft the payload by calling to torch.jit.unsupportedtensorops.execWrapper function in...

Picklescan has a missing detection when calling built-in python profile.Profile.runctx

SummaryUsing profile.Profile.runctx, which is a built-in python library function to execute remote pickle file. DetailsThe attack payload executes in the following steps:First, the attacker craft the payload by calling to profile.Profile.runctx function in reduce methodThen when the victim after...

PYSEC-2026-2873 Picklescan (scan_pytorch) Bypass via dynamic eval MAGIC_NUMBER

Summary This is a scanning bypass to scanpytorch function in picklescan. As we can see in the implementation of getmagicnumber that uses pickletools.genopsdata to get the magicnumber with the condition opcode.name includes INT or LONG, but the PyTorch's implemtation simply uses picklemodule.load ...

Picklescan (scan_pytorch) Bypass via dynamic eval MAGIC_NUMBER

SummaryThis is a scanning bypass to scanpytorch function in picklescan. As we can see in the implementation of getmagicnumber that uses pickletools.genopsdata to get the magicnumber with the condition opcode.name includes INT or LONG, but the PyTorch's implemtation simply uses picklemodule.load t...

PT-2026-59510

Summary This is a scanning bypass to scan pytorch function in picklescan. As we can see in the implementation of get magic number that uses pickletools.genopsdata to get the magic number with the condition opcode.name includes INT or LONG, but the PyTorch's implemtation simply uses pickle...

Picklescan is vulnerable to RCE through missing detection when calling numpy.f2py.crackfortran._eval_length

SummaryPicklescan uses the numpy.f2py.crackfortran.evallength function a NumPy F2PY helper to execute arbitrary Python code during unpickling. DetailsPicklescan fails to detect a malicious pickle that uses the gadget numpy.f2py.crackfortran.evallength in reduce, allowing arbitrary command executi...

PYSEC-2026-1783 Picklescan is vulnerable to RCE through missing detection when calling numpy.f2py.crackfortran._eval_length

Summary Picklescan uses the numpy.f2py.crackfortran.evallength function a NumPy F2PY helper to execute arbitrary Python code during unpickling. Details Picklescan fails to detect a malicious pickle that uses the gadget numpy.f2py.crackfortran.evallength in reduce, allowing arbitrary command...

PYSEC-2026-1791 Picklescan vulnerable to Arbitrary File Writing

Summary Picklescan has got open and shutil in its default dangerous blocklist to prevent arbitrary file overwrites. However the module distutils isnt blocked and can be used for the same purpose ie to write arbitrary files. Details This is another vulnerability which impacts the downstream user. ...

Picklescan has a missing detection when calling built-in python idlelib.debugobj.ObjectTreeItem

SummaryUsing idlelib.debugobj.ObjectTreeItem.SetText, which is a built-in python library function to execute remote pickle file. DetailsThe attack payload executes in the following steps:First, the attacker craft the payload by calling to idlelib.debugobj.ObjectTreeItem.SetText function in reduce...

Picklescan is missing detection when calling built-in python ensurepip._run_pip

SummaryUsing ensurepip.runpip function, which is a built-in python library function to execute remote pickle file. DetailsThe attack payload executes in the following steps:First, the attacker craft the payload by calling to ensurepip.runpip function in reduce methodThen when the victim after...

PYSEC-2026-1786 Picklescan has a missing detection when calling built-in python idlelib.calltip.Calltip

Summary Using idlelib.calltip.Calltip.fetchtip, which is a built-in python library function to execute remote pickle file. Details The attack payload executes in the following steps: First, the attacker craft the payload by calling to idlelib.calltip.Calltip.fetchtip function in reduce method The...

PYSEC-2026-1781 Picklescan has a missing detection when calling built-in python idlelib.debugobj.ObjectTreeItem

Summary Using idlelib.debugobj.ObjectTreeItem.SetText, which is a built-in python library function to execute remote pickle file. Details The attack payload executes in the following steps: First, the attacker craft the payload by calling to idlelib.debugobj.ObjectTreeItem.SetText function in...

PYSEC-2026-1792 Picklescan is missing detection when calling built-in python ensurepip._run_pip

Summary Using ensurepip.runpip function, which is a built-in python library function to execute remote pickle file. Details The attack payload executes in the following steps: First, the attacker craft the payload by calling to ensurepip.runpip function in reduce method Then when the victim after...

Picklescan has pickle parsing logic flaw that leads to malicious pickle file bypass

DetailsThere's a parsing logic error in picklescan and modelscan while trying to deal with opcode STACKGLOBAL.Function listglobals when handling STACKGLOBAL at position n, it is expected to track two arguments but in wrong range. The loop only consider the range from 1 to n-1 but forgets to...

PYSEC-2026-1788 Picklescan has pickle parsing logic flaw that leads to malicious pickle file bypass

Details There's a parsing logic error in picklescan and modelscan while trying to deal with opcode STACKGLOBAL. Function listglobals when handling STACKGLOBAL at position n, it is expected to track two arguments but in wrong range. The loop only consider the range from 1 to n-1 but forgets to...

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 makelabel function in the reduce method. An attacker can execute arbitrary commands by crafting...