Resource exhaustion in Flask-Restx Project
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Flask-Restx Project
- Python-Restx Flask-Restx — versions < 0.5.1
- Fedoraproject Fedora — versions 33, 34
Weakness classification (CWE)
References
- github.com/advisories/GHSA-3q6g-vf58-7m4g (Third Party Advisory)
- github.com/python-restx/flask-restx/issues/372 (Patch, Third Party Advisory, Issue Tracking)
- github.com/python-restx/flask-restx/commit/bab31e085f355dd73858fd3715f7ed718496… (Patch, Third Party Advisory)
- github.com/python-restx/flask-restx/blob/fd99fe11a88531f5f3441a278f7020589f9d2c… (Patch, Third Party Advisory)
- pypi.org/project/flask-restx/ (Product, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-32838?
- CVE-2021-32838 is a high-severity vulnerability in Flask-Restx Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-09-20.
- How severe is CVE-2021-32838?
- High severity. CVSS v3 base score is 7.5 out of 10.