---
id: CVE-2025-71375
title: >-
  picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in
  function when scanning pickle files for malicious code
summary: >-
  picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in
  function when scanning pickle files for malicious code. Attackers can craft
  malicious pickle payloads using _operator.methodcaller that evade detection
  and exec…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'
cwe:
  - CWE-502
published: '2026-07-04'
updated: '2026-07-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-71375'
references:
  - url: >-
      https://github.com/mmaitre314/picklescan/security/advisories/GHSA-955r-x9j8-7rhh
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/picklescan-undetected-remote-code-execution-via-operator-methodcaller
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00523
epssPercentile: 0.41954
ingestedAt: '2026-07-04T21:57:46.858Z'
---

## Overview

picklescan before 0.0.34 fails to detect the _operator.methodcaller built-in function when scanning pickle files for malicious code. Attackers can craft malicious pickle payloads using _operator.methodcaller that evade detection and execute arbitrary code when loaded by pickle.load().

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.