CVE-2025-71320

CRITICAL EPSS 45.4%

Published Jun 17, 20262w ago · Modified Jun 17, 20262w ago

9.3 CVSS 4.0

Critical

Published Jun 17, 2026 2w ago

Last Modified Jun 17, 2026 2w ago

Description

picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unblocked functions to achieve arbitrary code execution when the pickle is deserialized.

CVSS Details

Base Score

9.3

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

45.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-184

References 2

github.com https://github.com/mmaitre314/picklescan/security/advisories/GHSA-84r2-jw7c-4r5q
vulncheck.com https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-incomplete-disallowed-inputs

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.