CVE-2025-71325
picklescan - Detection Bypass via STACK_GLOBAL Opcode Parsing Logic Flaw
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-391 |
| Vendor | picklescan |
| Product | picklescan |
| Published | Jun 17, 2026 |
| Last Updated | Jun 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
picklescan / picklescan
0 < 0.0.27
References
github.com: https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9gvj-pp9x-gcfr github.com: https://github.com/mmaitre314/picklescan/commit/2a8383cfeb4158567f9770d86597300c9e508d0f vulncheck.com: https://www.vulncheck.com/advisories/picklescan-detection-bypass-via-stack-global-opcode-parsing-logic-flaw
Credits
🔍 Lyutoon