CVE-2025-71320 - CVE House
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Status published Critical CVE-2025-71320

picklescan - Remote Code Execution via Incomplete Disallowed Inputs

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • 0x-Apollyon

References

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CVE-2025-71378
picklescan - Remote Code Execution via Undetected cProfile.runctx in Pickle Files
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CVE-2025-71376
picklescan - Arbitrary Code Execution via Undetected idlelib.autocomplete.AutoComplete.fetch_completions
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CVE-2025-71375
picklescan - Undetected Remote Code Execution via _operator.methodcaller
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CVE-2025-71374
picklescan - Arbitrary Code Execution via Undetected profile.Profile.run
High 7.6
CVE-2025-71373
picklescan - Remote Code Execution via operator.methodcaller Detection Bypass
High 7.6

Affected Vendor

Affected Software

picklescan
Vulnerable Versions:
0, 0.0.33

Timeline

Official Publish: June 17th, 2026
Last Modified: June 17th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-184

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.