CVE-2026-29790: Getdbt Dbt-Common

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

dbt-common is the shared common utilities for dbt-core and adapter implementations use. Prior to versions 1.34.2 and 1.37.3, a path traversal vulnerability exists in dbt-common's safe_extract() function used when extracting tarball archives. The function uses os.path.commonprefix() to validate that extracted files remain within the intended destination directory. However, commonprefix() compares paths character-by-character rather than by path components, allowing a malicious tarball to write files to sibling directories with matching name prefixes. This issue has been patched in versions 1.34.2 and 1.37.3.

Affected products

• Getdbt Dbt-Common: before 1.34.2 (fixed in 1.34.2); from 1.35.0, before 1.37.3 (fixed in 1.37.3)

Published 2026-03-06. Last modified 2026-06-17.