High severity7.5NVD Advisory· Published Sep 20, 2021· Updated Jun 17, 2026
CVE-2021-32838
CVE-2021-32838
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
flask-restxPyPI | < 0.5.1 | 0.5.1 |
Affected products
5- cpe:2.3:a:flask-restx_project:flask-restx:*:*:*:*:*:python:*:*Range: <0.5.1
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- Range: < 0.5.1
Patches
Vulnerability mechanics
References
13- github.com/python-restx/flask-restx/blob/fd99fe11a88531f5f3441a278f7020589f9d2cc0/flask_restx/inputs.pynvdPatchThird Party AdvisoryWEB
- github.com/python-restx/flask-restx/commit/bab31e085f355dd73858fd3715f7ed71849656danvdPatchThird Party AdvisoryWEB
- github.com/python-restx/flask-restx/issues/372nvdIssue TrackingPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-3q6g-vf58-7m4gnvdThird Party AdvisoryADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-32838ghsaADVISORY
- pypi.org/project/flask-restx/nvdProductThird Party Advisory
- github.com/pypa/advisory-database/tree/main/vulns/flask-restx/PYSEC-2021-325.yamlghsaWEB
- github.com/python-restx/flask-restx/security/advisories/GHSA-3q6g-vf58-7m4gghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/5UCTFVDU3677B5OBGK4EF5NMUPJLL6SQghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/QUD6SWZLX52AAZUHDETJ2CDMQGEPGFL3ghsaWEB
- pypi.org/project/flask-restxghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5UCTFVDU3677B5OBGK4EF5NMUPJLL6SQ/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUD6SWZLX52AAZUHDETJ2CDMQGEPGFL3/nvd
News mentions
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