GHSA-f5gc-p5m3-v347 XXE in petl

• PyPI petl: < 1.6.8 → fixed in 1.6.8

Impact Information Disclosure Summary petl is a Python library that provides functions for extraction, transformation, and loading (ETL) of data. petl before 1.68, in some configurations, allows resolution of entities in XML input. An attacker who is able to submit XML input to an application using petl can disclose arbitrary files on the file system in the context of the user under which the application is running. Affected Applications Applications that: • accept attacker-supplied XML input that is processed using petl = 1.68 Workarounds • Assure there is no user/external access to the application using petl • Assure your application is not using the function fromxml() References • https://github.com/nvn1729/advisories/blob/master/cve-2020-29128.md • https://github.com/petl-developers/petl/pull/527 • https://github.com/petl-developers/petl/releases/tag/v1.6.8 • https://petl.readthedocs.io/en/stable/changes.html • https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing For more information If you have any questions or comments about this advisory: • Add a comment in the Github issue Thaks to Naveen Sunkavally.