CVE-2025-5174 erdogant pypickle pypickle.py load deserialization
A deserialization vulnerability in the pypickle library allows local attackers to execute arbitrary code via crafted pickle data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-5174?
CVE-2025-5174 is a medium-severity unsafe deserialization vulnerability in erdogant pypickle, published on 26 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in erdogant pypickle up to 1.1.5 and classified as problematic. Affected by this issue is the function load of the file pypickle/pypickle.py. The manipulation leads to deserialization. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The patch is identified as 14b4cae704a0bb4eb6723e238f25382d847a1917. It is recommended to upgrade the affected component.
Which versions are affected by CVE-2025-5174?
3 open source packages ship an affected version, including pypickle. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
pypickle PyPI | All versions | 2.0.0 |
pypickle PyPI | All versions | 2.0.0 |
pypickle PyPI | All versions | 2.0.0 |
Products include Erdogant Pypickle.
How do I fix CVE-2025-5174?
Upgrade pypickle to 2.0.0 or later.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-5174 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5174 exists.
Other vulnerabilities in erdogant pypickle
Sources
Also known as GHSA-5qwj-342r-h886, PYSEC-2025-45.