Is CVE-2025-71376 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-71376 being exploited in the wild.

How severe is CVE-2025-71376?

High severity, with a CVSS score of 8.1, published 23 June 2026.

Which products and versions are affected?

picklescan (PyPI) < 0.0.29, ECOSYSTEM:introduced=0,fixed=0.0.29.

Is there a fix for CVE-2025-71376?

Yes. picklescan (PyPI): upgrade to 0.0.29 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-71376 attacked?

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

Am I affected by CVE-2025-71376?

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-2025-71376: picklescan detection bypass via idlelib fetch_completions

Q: Which products and versions are affected?

picklescan (PyPI) < 0.0.29, ECOSYSTEM:introduced=0,fixed=0.0.29.

Q: Is there a fix for CVE-2025-71376?

Yes. picklescan (PyPI): upgrade to 0.0.29 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is CVE-2025-71376 attacked?

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

Q: Am I affected by CVE-2025-71376?

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-2025-71376 · Severity: high · CVSS 8.1 · Published 2026-06-23

picklescan is a security tool used to scan Python pickle files and machine learning models for malicious code. A vulnerability in versions prior to 0.0.29 allows specially crafted malicious files to bypass detection by using a specific Python internal function. If a user trusts the scan results and opens the file, an attacker could execute arbitrary commands on the user's system, potentially leading to a full system compromise or data theft.

Technologies: picklescan (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-71376 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-71376 being exploited in the wild.
How severe is CVE-2025-71376?: High severity, with a CVSS score of 8.1, published 23 June 2026.
Which products and versions are affected?: picklescan (PyPI) < 0.0.29, ECOSYSTEM:introduced=0,fixed=0.0.29.
Is there a fix for CVE-2025-71376?: Yes. picklescan (PyPI): upgrade to 0.0.29 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-71376 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2025-71376?: 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 0.0.29 or later
```
pip install "picklescan>=0.0.29"
```

Technical details

A deserialization bypass exists in picklescan before version 0.0.29. The scanner's logic fails to identify the 'idlelib.autocomplete.AutoComplete.fetch_completions' function as dangerous when used within a pickle's __reduce__ method. An attacker can craft a malicious pickle file that, when scanned, appears safe but executes arbitrary system commands via the 'os.system' or similar calls when subsequently loaded using 'pickle.load()'. This vulnerability is categorized as CWE-502 (Deserialization of Untrusted Data). Users are advised to upgrade to version 0.0.29 or later to ensure these payloads are correctly flagged.

Affected products

mmaitre314 picklescan < 0.0.29

Identifiers

CVE-2025-71376
GHSA-7cq8-mj8x-j263
PYSEC-2026-4133

Timeline

2025-08-26: advisory: GitHub Security Advisory GHSA-7cq8-mj8x-j263 published
2026-06-23: disclosed: CVE-2025-71376 published to NVD

References

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