CVE-2025-61677Low· 2.5▾ SunlitDataChain Vulnerable to Deserialization of Untrusted Data from Environment Variables
▾ Sunlit zone — Low / medium · no exploitation signal
impact 13.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.1%
0.1% → 0.2%
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.
datachain < 0.34.2Upgrade to a patched release:
datachain 0.34.2