{"cve":"CVE-2025-61677","nvd":{"published":"2025-10-03T22:15:32.390","modified":"2026-10-08T22:10:00.563","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","score":2.5},"cwes":["CWE-502"],"references":["https://github.com/iterative/datachain/commit/914b95610620d50c8d9bee506ccbfa7d4d57fdc0","https://github.com/iterative/datachain/pull/1358","https://github.com/iterative/datachain/security/advisories/GHSA-6px8-mr29-cj4r"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2025-61677","score":0.00166,"percentile":0.05789,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-6px8-mr29-cj4r","url":"https://osv.dev/vulnerability/GHSA-6px8-mr29-cj4r","summary":"DataChain Vulnerable to Deserialization of Untrusted Data from Environment Variables","modified":"2026-07-07T17:57:35.482374956Z","packages":[{"ecosystem":"PyPI","name":"datachain","purl":"pkg:pypi/datachain","ranges":["<0.34.2"],"fixed":["0.34.2"]}]},{"id":"PYSEC-2026-1288","url":"https://osv.dev/vulnerability/PYSEC-2026-1288","summary":"DataChain Vulnerable to Deserialization of Untrusted Data from Environment Variables","modified":"2026-07-07T17:47:34.801742339Z","packages":[{"ecosystem":"PyPI","name":"datachain","purl":"pkg:pypi/datachain","ranges":["<0.34.2"],"fixed":["0.34.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}