# CVE-2025-71372: Picklescan detection bypass via numpy getlincoef gadget

Source: https://junglewise.ai/threats/cve-2025-71372-picklescan-detection-bypass-via-numpy-getlincoef-gadget  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-04. Updated: 2026-07-04  
License: CC BY 4.0 with a link back

CVE-2025-71372 · Severity: high · CVSS 8.1 · Published 2026-07-04

Picklescan is a security tool used to scan Python pickle files and AI models for malicious code before they are opened. A vulnerability in this tool allows specially crafted malicious files to bypass its safety checks by using a specific hidden command. If a user relies on Picklescan to vet a file and then opens it, an attacker could gain full control over the user's system, potentially leading to data theft or supply-chain attacks.

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

## Quick answers

**Is CVE-2025-71372 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-71372 being exploited in the wild.

**How severe is CVE-2025-71372?** 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=0.0.33.

**Is there a fix for CVE-2025-71372?** Yes. picklescan (PyPI): upgrade to 0.0.33 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-71372 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2025-71372?** 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 0.0.33 or later

  ```sh
  pip install "picklescan>=0.0.33"
  ```


## Technical details

Picklescan is vulnerable to a deserialization bypass (CWE-502) because its blocklist/heuristic engine fails to identify the 'numpy.f2py.crackfortran.getlincoef' function as a dangerous gadget. An attacker can craft a malicious pickle file that utilizes this function within a '__reduce__' method to execute arbitrary Python code. When a victim scans the file, Picklescan incorrectly flags it as safe; subsequent loading of the file via 'pickle.load()' triggers the exploit. This vulnerability requires the victim to attempt to load the malicious file (User Interaction) and is resolved in version 0.0.33.

## Affected products

- Picklescan Picklescan before 0.0.33

## Identifiers

- CVE-2025-71372
- GHSA-rrxm-2pvv-m66x

## Timeline

- 2025-12-27: advisory: GitHub Security Advisory published
- 2026-07-03: disclosed: NVD publication date
- 2026-07-03: patched: Version 0.0.33 released

## References

- [https://github.com/mmaitre314/picklescan/security/advisories/GHSA-rrxm-2pvv-m66x](https://github.com/mmaitre314/picklescan/security/advisories/GHSA-rrxm-2pvv-m66x)
- [https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-getlincoef-gadget](https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-numpy-f2py-crackfortran-getlincoef-gadget)

## 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 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)
- [picklescan security bypass via torch.utils.bottleneck in pickle files](https://junglewise.ai/threats/cve-2025-71366-picklescan-security-bypass-via-torch-utils-bottleneck-in-pickle)