CVE-2025-71371 picklescan - Remote Code Execution via code.InteractiveInterpreter Detection Bypass
Attackers can bypass picklescan detection using code.InteractiveInterpreter to execute arbitrary code via malicious pickle files.
- 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-2025-71371?
CVE-2025-71371 is a high-severity unsafe deserialization vulnerability in picklescan, published on 30 Jun 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 0.0.29 fails to detect malicious pickle files using code.InteractiveInterpreter.runcode in reduce methods. Attackers can craft pickle payloads that bypass picklescan detection and execute arbitrary code when loaded via pickle.load().
Weakness: CWE-502
Which versions are affected by CVE-2025-71371?
2 open source packages ship an affected version, including picklescan.
| Package | Affected | Fixed in |
|---|---|---|
picklescan PyPI | All versions | 0.0.29 |
picklescan PyPI | All versions | 0.0.29 |
How do I fix CVE-2025-71371?
Upgrade picklescan to 0.0.29 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-71371 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71371 exists.
Sources
Also known as GHSA-cj3c-v495-4xqh, GHSA-h96j-r2w4-m289.