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Advisory record · GHSA-f4x7-rfwp-v3xw

Picklescan missing detection when calling pytorch function torch.fx.experimental.symbolic_shapes.ShapeEnv.evaluate_guards_expression

CVSS 7.6 HighEPSS 0.0038 · 32nd percentile

Published by the GitHub Advisory Database at 22 Aug 2025, 16:56 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
picklescanPyPI<0.0.280.0.28
Identifiers
GHSA-f4x7-rfwp-v3xw · CVE-2025-71356
Weakness (CWE)
CWE-345 · CWE-502
Tags
Published
22 Aug 2025
Updated
8 Jul 2026

Machine-written summary

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

Picklescan versions before 0.0.28 fail to flag a pickle that calls torch.fx.experimental.symbolic_shapes.ShapeEnv.evaluate_guards_expression, a PyTorch function that can execute code. An attacker can craft a malicious pickle file that Picklescan reports as safe, and when a victim loads it with pickle.load(), arbitrary code runs. Upgrade picklescan to version 0.0.28 or later.

Written 6 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 0.0038, the 32nd percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:05 UTC First seen by agentprime
  2. 31 Oct 2026, 15:05 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.