# CVE-2025-71358: picklescan detection bypass via idlelib get_entity function

Source: https://junglewise.ai/threats/cve-2025-71358-picklescan-detection-bypass-via-idlelib-get-entity-function  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-22. Updated: 2026-06-22  
License: CC BY 4.0 with a link back

CVE-2025-71358 · Severity: high · CVSS 8.1 · Published 2026-06-22

Picklescan is a security tool used to detect malicious code hidden in Python "pickle" files, which are commonly used to store machine learning models. A vulnerability was found where certain malicious commands could bypass detection by using a specific Python library function. If a user relies on Picklescan to verify a file and then opens it, an attacker could execute arbitrary code on the user's system.

Technologies: [picklescan (PyPI)](https://junglewise.ai/threats/technologies/picklescan). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2025-71358 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-71358 being exploited in the wild.

**How severe is CVE-2025-71358?** High severity, with a CVSS score of 8.1, published 22 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-2025-71358?** 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-2025-71358 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2025-71358?** 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

  ```sh
  pip install "picklescan>=0.0.29"
  ```


## Technical details

Picklescan (versions prior to 0.0.29) contains a detection bypass vulnerability. The tool fails to flag malicious pickle files that use the `idlelib.autocomplete.AutoComplete.get_entity` function within a `__reduce__` method to execute arbitrary system commands. An attacker can craft a malicious pickle file (such as a PyTorch model) that passes Picklescan's security checks but executes code via `pickle.load()`. This is a bypass of the library's primary security function. The issue is resolved in version 0.0.29.

## Affected products

- mmaitre314 picklescan < 0.0.29

## Identifiers

- CVE-2025-71358
- GHSA-6w4w-5w54-rjvr
- PYSEC-2026-1784

## Timeline

- 2025-08-26: disclosed
- 2025-08-26: advisory
- 2025-08-26: patched: Fixed in version 0.0.29

## References

- [https://api.github.com/users/FredericDT](https://api.github.com/users/FredericDT)
- [https://github.com/FredericDT](https://github.com/FredericDT)
- [https://api.github.com/users/FredericDT/gists%7B/gist_id%7D](https://api.github.com/users/FredericDT/gists%7B/gist_id%7D)
- [https://api.github.com/users/FredericDT/repos](https://api.github.com/users/FredericDT/repos)
- [https://avatars.githubusercontent.com/u/16513314?v=4](https://avatars.githubusercontent.com/u/16513314?v=4)
- [https://api.github.com/users/FredericDT/events%7B/privacy%7D](https://api.github.com/users/FredericDT/events%7B/privacy%7D)

## Related threats

- [picklescan detection bypass via _operator.methodcaller](https://junglewise.ai/threats/cve-2025-71375-picklescan-detection-bypass-via-operator-methodcaller)
- [picklescan security bypass via operator.methodcaller](https://junglewise.ai/threats/cve-2025-71373-picklescan-security-bypass-via-operator-methodcaller)
- [Picklescan detection bypass via numpy getlincoef gadget](https://junglewise.ai/threats/cve-2025-71372-picklescan-detection-bypass-via-numpy-getlincoef-gadget)
- [picklescan safety check bypass via PyTorch decoder basichandlers](https://junglewise.ai/threats/cve-2025-71369-picklescan-safety-check-bypass-via-pytorch-decoder-basichandlers)
- [picklescan security bypass via _operator.attrgetter function call](https://junglewise.ai/threats/cve-2025-71367-picklescan-security-bypass-via-operator-attrgetter-function-call)