CVE-2021-32838 – Regular Expression Denial of Service in flask-restx

https://notcve.org/view.php?id=CVE-2021-32838

Flask-RESTX (pypi package flask-restx) is a community driven fork of Flask-RESTPlus. Flask-RESTX before version 0.5.1 is vulnerable to ReDoS (Regular Expression Denial of Service) in email_regex. This is fixed in version 0.5.1. Flask-RESTX (paquete pypi flask-restx) es un fork impulsado por la comunidad de Flask-RESTPlus. Flask-RESTX versiones anteriores a 0.5.1, es vulnerable a ReDoS (Denegación de Servicio por Expresión Regular) en la función email_regex. • https://github.com/advisories/GHSA-3q6g-vf58-7m4g https://github.com/python-restx/flask-restx/blob/fd99fe11a88531f5f3441a278f7020589f9d2cc0/flask_restx/inputs.py#L51 https://github.com/python-restx/flask-restx/commit/bab31e085f355dd73858fd3715f7ed71849656da https://github.com/python-restx/flask-restx/issues/372 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5UCTFVDU3677B5OBGK4EF5NMUPJLL6SQ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUD6SWZLX52AAZ • CWE-400: Uncontrolled Resource Consumption •