CVE-2025-71372 Picklescan - Arbitrary Code Execution via numpy.f2py.crackfortran.getlincoef Gadget
Attackers can bypass Picklescan's safety checks to execute arbitrary code via malicious pickle files, risking supply-chain attacks on shared models.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-71372?
CVE-2025-71372 is a high-severity unsafe deserialization vulnerability in Picklescan, published on 4 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Picklescan before 0.0.33 fails to detect the numpy.f2py.crackfortran.getlincoef gadget in pickle __reduce__ methods, allowing arbitrary code execution. Attackers can craft malicious pickle files that execute arbitrary Python code when loaded, bypassing Picklescan's safety checks and enabling supply-chain poisoning of shared model files.
Weakness: CWE-502
Which versions are affected by CVE-2025-71372?
2 open source packages ship an affected version, including picklescan.
| Package | Affected | Fixed in |
|---|---|---|
picklescan PyPI | All versions | 0.0.33 |
picklescan PyPI | All versions | 0.0.33 |
How do I fix CVE-2025-71372?
Upgrade picklescan to 0.0.33 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-71372 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71372 exists.
Sources
Also known as GHSA-gf62-q6c8-6vxg, GHSA-rrxm-2pvv-m66x.