CVE-2021-32838 — Uncontrolled Resource Consumption in Flask-restx

CWE-400 — Uncontrolled Resource ConsumptionCWE-1333 — Regex Denial of Service4 documents3 sources
Severity
7.5HIGHNVD
EPSS
1.4%
top 19.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Python-restx Flask-restxFlask-restx Project Flask-restxFedoraproject Fedora
Timeline
PublishedSep 20

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶CVEListV5python-restx/flask-restx< 0.5.1

Also affects: Fedora 33, 34

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
OSV
CVE-2021-32838: Flask-RESTX (pypi package flask-restx) is a community driven fork of Flask-RESTPlus↗2021-09-20
▶
OSV
Regular Expression Denial of Service in flask-restx↗2021-09-08
▶
GHSA
Regular Expression Denial of Service in flask-restx↗2021-09-08
▶
CVE-2021-32838 — Uncontrolled Resource Consumption | cvebase