CVE-2025-71321 picklescan - Arbitrary File Writing via distutils Module Bypass

picklescan before 0.0.33 contains an arbitrary file writing vulnerability that allows attackers to bypass the dangerous blocklist by using distutils.fileutil.writefile. Attackers can construct malicious pickle objects to overwrite critical system files and achieve denial of service or remote code...

PickleScan has multiple stdlib modules with direct RCE not in blocklist

Summary picklescan 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 bypasse...

Incomplete List of Disallowed Inputs

Overview picklescan is a Security scanner detecting Python Pickle files performing suspicious actions Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs in the unsafeglobals function. An attacker can execute arbitrary commands on the target system by crafting...

GHSA-G38G-8GR9-H9XP PickleScan has multiple stdlib modules with direct RCE not in blocklist

Summary picklescan 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 bypasse...

Permissive List of Allowed Inputs

Overview picklescan is a Security scanner detecting Python Pickle files performing suspicious actions Affected versions of this package are vulnerable to Permissive List of Allowed Inputs in the unsafeglobals function that does not block pkgutil.resolvename Python stdlib function. An attacker can...

PickleScan's profile.run blocklist mismatch allows exec() bypass

Summary picklescan v1.0.3 blocks profile.Profile.run and profile.Profile.runctx but does NOT block the module-level profile.run function. A malicious pickle calling profile.runstatement achieves arbitrary code execution via exec while picklescan reports 0 issues. This is because the blocklist ent...

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 ...

Incomplete List of Disallowed Inputs

Overview picklescan is a Security scanner detecting Python Pickle files performing suspicious actions Affected versions of this package are vulnerable to Incomplete List of Disallowed Inputs via the scanpytorch function. An attacker can execute arbitrary code by crafting a malicious payload that...

GHSA-97F8-7CMV-76J2 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 ...

PT-2026-50469

Name of the Vulnerable Software and Affected Versions picklescan versions prior to 1.0.3 Description A scanning bypass exists in the scan pytorch function. The issue arises from a difference in how magic numbers are handled compared to PyTorch's implementation. While the software uses...

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 logging.FileHandler. An attacker can write empty files on the target filesystem by supplying a malicious...

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 getattr function. An attacker can execute arbitrary code by crafting a malicious pickle file that...

PT-2026-51155

Name of the Vulnerable Software and Affected Versions picklescan versions prior to 1.0.1 Description Unsafe pickle deserialization allows unauthenticated attackers to create arbitrary zero-byte files. This is achieved through the instantiation of the logging.FileHandler class. By crafting malicio...

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 scanner.py deserialization scanning logic. An attacker can achieve remote code execution by crafting ...

PT-2026-2228

Name of the Vulnerable Software and Affected Versions Fickling versions prior to 0.1.7 Description Fickling, a Python pickling decompiler and static analyzer, does not explicitly block the ctypes and pydoc modules in versions prior to 0.1.7. Combining these modules can lead to Remote Code Executi...

Server-side Request Forgery (SSRF)

Overview picklescan is a Security scanner detecting Python Pickle files performing suspicious actions Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the io.FileIO and urllib.request.urlopen functions chaining. An attacker can access arbitrary files on the...

CVE-2025-1944

picklescan before 0.0.23 is vulnerable to a ZIP archive manipulation attack that causes it to crash when attempting to extract and scan PyTorch model archives. By modifying the filename in the ZIP header while keeping the original filename in the directory listing, an attacker can make PickleScan...

CVE-2025-1889

picklescan before 0.0.22 only considers standard pickle file extensions in the scope for its vulnerability scan. An attacker could craft a malicious model that uses Pickle and include a malicious pickle file with a non-standard file extension. Because the malicious pickle file inclusion is not...

CVE-2025-1945

picklescan before 0.0.23 fails to detect malicious pickle files inside PyTorch model archives when certain ZIP file flag bits are modified. By flipping specific bits in the ZIP file headers, an attacker can embed malicious pickle files that remain undetected by PickleScan while still being...

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

Summary Picklescan uses operator.attrgetter, 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.attrgetter function in the reduce method. - Then,...