GHSA-5RPH-Q42J-36J9 Duplicate Advisory: Picklescan has pickle parsing logic flaw that leads to malicious pickle file bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9gvj-pp9x-gcfr. This link is maintained to preserve external references. Original Description picklescan before 0.0.27 contains a parsing logic error in the listglobals function when handling STACKGLOBAL opcodes...

CVE-2025-71325: Unchecked Error Condition

picklescan before 0.0.27 contains a parsing logic error in the listglobals function when handling STACKGLOBAL 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 trigg...

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...