CVE-2025-71359: high-severity vulnerability in picklescan
picklescan - Unsafe Deserialization via lib2to3.pgen2.grammar.Grammar.loads
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.6epss 0.6%
picklescan before 0.0.29 fails to detect malicious pickle payloads that utilize lib2to3.pgen2.grammar.Grammar.loads in the reduce method, allowing remote code execution. Attackers can craft pickle files embedding dangerous code that evades picklescan detection and executes during pickle.load() deserialization.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
picklescan · picklescanRelated CVEs — picklescan
In the same product, most dangerous first.
CVE-2026-56315CRITICALpicklescan - Remote Code Execution via Unblocked Standard Library ModulesEPSS 1.1%CVE-2025-71323CRITICALpicklescan - Remote Code Execution via Unblocked ctypes ModuleEPSS 1.0%CVE-2025-71368HIGHpicklescan - Arbitrary Code Execution via Undetected doctest.debug_scriptEPSS 0.8%CVE-2025-71321CRITICALpicklescan - Arbitrary File Writing via distutils Module BypassEPSS 0.8%CVE-2026-3490CRITICALpicklescan - Universal Blocklist Bypass via pkgutil.resolve_nameEPSS 0.8%CVE-2025-71320CRITICALpicklescan - Remote Code Execution via Incomplete Disallowed InputsEPSS 0.8%