CVE-2025-61677
Low
Description
DataChain is a Python-based AI-data warehouse for transforming and analyzing unstructured data. Versions 0.34.1 and below allow for deseriaization of untrusted data because of the way the DataChain library reads serialized objects from environment variables (such as DATACHAIN__METASTORE and DATACHAIN__WAREHOUSE) in the loader.py module. An attacker with the ability to set these environment variables can trigger code execution when the application loads. This issue is fixed in version 0.34.2.
SeverityLow
CVSS2.5
Exploit probability—
ProductDatachain
PublishedOct 3, 2025
First seenOct 3, 2025
Weakness typeCWE-502Deserialization of untrusted data
How to fix
Update
- datachain0.34.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| datachainPyPI | v < 0.34.2 | 0.34.2 |
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