Improper Restriction of XML External Entity Reference in Jelly
Critical severity
GitHub Reviewed
Published
May 17, 2022
to the GitHub Advisory Database
•
Updated Feb 15, 2023
Description
Published by the National Vulnerability Database
Sep 28, 2017
Published to the GitHub Advisory Database
May 17, 2022
Reviewed
Jul 1, 2022
Last updated
Feb 15, 2023
During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.
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