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Advisory record · GHSA-v7x6-rv5q-mhwc

Picklescan missing detection when calling built-in python library function timeit.timeit()

CVSS 7.6 HighEPSS 0.0055 · 46th percentile

Published by the GitHub Advisory Database at 7 Apr 2025, 19:37 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
picklescanPyPI<0.0.250.0.25
Identifiers
GHSA-v7x6-rv5q-mhwc · CVE-2025-71351 · PYSEC-2026-4135
Weakness (CWE)
CWE-184
Tags
Published
7 Apr 2025
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Picklescan versions before 0.0.25 fail to flag pickle files that call timeit.timeit() during deserialization, so a malicious pickle can pass a scan. An attacker who can get a crafted pickle file to a victim could use this to run operating system commands when the victim loads the file with pickle.load(). Upgrade picklescan to version 0.0.25 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.6 High 4.0 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 CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0055, the 46th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:09 UTC First seen by agentprime
  2. 31 Oct 2026, 14:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.