CVE-2025-71369 picklescan - Unsafe Deserialization via torch.utils.data.datapipes.utils.decoder.basichandlers
Attackers can bypass safety checks in picklescan to execute remote code via malicious pickle files using specific torch handlers.
- 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-2025-71369?
CVE-2025-71369 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 0.0.28 fails to detect malicious pickle files that use torch.utils.data.datapipes.utils.decoder.basichandlers in reduce methods, allowing attackers to bypass safety checks. Remote attackers can embed undetected malicious code in pickle files that executes during deserialization, enabling remote code execution.
Weakness: CWE-502
Which versions are affected by CVE-2025-71369?
2 open source packages ship an affected version, including picklescan.
| Package | Affected | Fixed in |
|---|---|---|
picklescan PyPI | All versions | 0.0.28 |
picklescan PyPI | All versions | 0.0.28 |
How do I fix CVE-2025-71369?
Upgrade picklescan to 0.0.28 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-71369 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71369 exists.
Sources
Also known as GHSA-gphx-c88f-73gw, GHSA-h3qp-7fh3-f8h4.