Low 2.0Published Mar 6, 2026

CVE-2026-29790dbt-common: commonprefix() doesn't protect against path traversal

Updated under an hour ago (Oct 27, 2026, 10:23 PM ET)

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Every CVE for dbt-labs dbt-common

Exploited in the last 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.

CVSS: 2.0 LOW (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

dbt-labs dbt-common dbt_labs:dbt_common (from the name)	before 1.37.3; before 1.34.2	CNA record
getdbt dbt-common getdbt:dbt-common	before 1.34.2; from 1.35.0 before 1.37.3	NVD

References

References

https://github.com/dbt-labs/dbt-common/security/advisories/GHSA-w75w-9qv4-j5xj	x-refsource-confirm, mitigation, vendor-advisory
https://github.com/pypa/pip/pull/13777	x-refsource-misc, issue-tracking
https://github.com/dbt-labs/dbt-common/commit/e547954a48bac9394ef6eb98432e429dce9a7709	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.