CVE-2026-29790: dbt-labs dbt-common, обхождане на път

Описание

Оригинално описание

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.

Засегнати продукти

• dbt-labs dbt-common: < 1.37.3; < 1.34.2

Вид слабост

• CWE-22 Неправилно ограничаване на път до позволена директория

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-29790
• https://nvd.nist.gov/vuln/detail/CVE-2026-29790
• https://github.com/dbt-labs/dbt-common/security/advisories/GHSA-w75w-9qv4-j5xj
• https://github.com/pypa/pip/pull/13777
• https://github.com/dbt-labs/dbt-common/commit/e547954a48bac9394ef6eb98432e429dce9a7709