Matthieu Maitre

4 exploits Active since Mar 2025
CVE-2026-53875 WRITEUP HIGH WRITEUP
picklescan - Scanning Bypass via Dynamic Eval in scan_pytorch
picklescan before 1.0.3 contains a scanning bypass vulnerability in the scan_pytorch function that allows attackers to embed malicious magic numbers via dynamic eval using the __reduce__ trick. Attackers can craft malicious PyTorch payloads that evade picklescan detection while remaining executable, enabling arbitrary code execution when loaded with torch.load().
CVE-2025-71325 WRITEUP CRITICAL WRITEUP
picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw
picklescan before 0.0.27 contains a parsing logic error in the _list_globals function when handling STACK_GLOBAL opcodes, failing to track arguments in the correct range and allowing malicious pickle files to bypass detection. Attackers can craft pickle files with arguments at position zero to trigger unexpected exceptions and evade security scanning.
CVSS 9.8
CVE-2025-1944 WRITEUP MEDIUM WRITEUP
PickleScan <0.0.23 - Code Injection
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 raise a BadZipFile error. However, PyTorch's more forgiving ZIP implementation still allows the model to be loaded, enabling malicious payloads to bypass detection.
CVSS 6.5
CVE-2025-1945 WRITEUP CRITICAL WRITEUP
picklescan < 0.0.23 - Insufficient Verification of Data Authenticity via ZIP File Header Bit Manipulation
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 successfully loaded by PyTorch's torch.load(). This can lead to arbitrary code execution when loading a compromised model.
CVSS 9.8