Deserialization in Iterative Datachain
CVE-2025-61677
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.
Vulnerability class: Insecure Deserialization
EPSS: 0.002 (4.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Iterative Datachain — versions < 0.34.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-61677?
- CVE-2025-61677 is a low-severity vulnerability in Iterative Datachain, classified under Deserialization of Untrusted Data. CVSS score: 2.5/10. Published 2025-10-03.
- How severe is CVE-2025-61677?
- Low severity. CVSS v3 base score is 2.5 out of 10.
- Is CVE-2025-61677 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.