{ "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-32838", "STATE": "PUBLIC", "TITLE": "Regular Expression Denial of Service in flask-restx" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "flask-restx", "version": { "version_data": [ { "version_value": "< 0.5.1" } ] } } ] }, "vendor_name": "python-restx" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "generator": { "engine": "Vulnogram 0.0.9" }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-400 Uncontrolled Resource Consumption" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/advisories/GHSA-3q6g-vf58-7m4g", "refsource": "CONFIRM", "url": "https://github.com/advisories/GHSA-3q6g-vf58-7m4g" }, { "name": "https://github.com/python-restx/flask-restx/issues/372", "refsource": "MISC", "url": "https://github.com/python-restx/flask-restx/issues/372" }, { "name": "https://github.com/python-restx/flask-restx/commit/bab31e085f355dd73858fd3715f7ed71849656da", "refsource": "MISC", "url": "https://github.com/python-restx/flask-restx/commit/bab31e085f355dd73858fd3715f7ed71849656da" }, { "name": "https://github.com/python-restx/flask-restx/blob/fd99fe11a88531f5f3441a278f7020589f9d2cc0/flask_restx/inputs.py#L51", "refsource": "MISC", "url": "https://github.com/python-restx/flask-restx/blob/fd99fe11a88531f5f3441a278f7020589f9d2cc0/flask_restx/inputs.py#L51" }, { "name": "https://pypi.org/project/flask-restx/", "refsource": "MISC", "url": "https://pypi.org/project/flask-restx/" } ] }, "source": { "advisory": "GHSA-3q6g-vf58-7m4g", "discovery": "UNKNOWN" } }