Is CVE-2025-71366 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-71366 being exploited in the wild.

How severe is CVE-2025-71366?

High severity, with a CVSS score of 8.1, published 4 July 2026.

Which products and versions are affected?

picklescan (PyPI) ECOSYSTEM:introduced=0,fixed=0.0.28.

Is there a fix for CVE-2025-71366?

Yes. picklescan (PyPI): upgrade to 0.0.28 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-71366 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2025-71366?

Check whether you run picklescan (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-71366: picklescan security bypass via torch.utils.bottleneck in pickle files

CVE-2025-71366 · Severity: high · CVSS 8.1 · Published 2026-07-04

picklescan is a security tool used to scan Python pickle files and machine learning models for malicious code. A vulnerability exists where the tool fails to detect certain dangerous commands hidden within these files. If a user relies on an affected version of picklescan to verify a file and then opens it, an attacker could gain full control over the user's system.

Technologies: picklescan (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-71366 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-71366 being exploited in the wild.
How severe is CVE-2025-71366?: High severity, with a CVSS score of 8.1, published 4 July 2026.
Which products and versions are affected?: picklescan (PyPI) ECOSYSTEM:introduced=0,fixed=0.0.28.
Is there a fix for CVE-2025-71366?: Yes. picklescan (PyPI): upgrade to 0.0.28 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-71366 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2025-71366?: Check whether you run picklescan (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

picklescan (PyPI): upgrade to 0.0.28 or later
```
pip install "picklescan>=0.0.28"
```

Technical details

A deserialization vulnerability (CWE-502) exists in picklescan versions prior to 0.0.28. The scanner's blocklist/allowlist logic fails to identify the 'torch.utils.bottleneck.__main__.run_cprofile' function as a dangerous global. An attacker can craft a malicious pickle file using this function in a '__reduce__' method to execute arbitrary Python code. When a victim scans the file, picklescan reports it as safe; subsequent loading of the file via 'pickle.load()' results in arbitrary code execution. This issue is resolved in version 0.0.28.

Affected products

picklescan picklescan < 0.0.28

Identifiers

CVE-2025-71366
GHSA-4r9r-ch6f-vxmx

Timeline

2025-08-22: advisory: GitHub Security Advisory published
2026-07-03: disclosed: CVE published to NVD

References

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