CVE-2022-40897

5.9 MEDIUM

Published: December 23, 2022 Modified: November 04, 2025

Description

Python Packaging Authority (PyPA) setuptools before 65.5.1 allows remote attackers to cause a denial of service via HTML in a crafted package or custom PackageIndex page. There is a Regular Expression Denial of Service (ReDoS) in package_index.py.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/pypa/setuptools/blob/fe8a98e696241487ba6ac9f91faa38ade939ec5d/setuptools/package_index.py#L200

Source: cve@mitre.org

Third Party Advisory

https://github.com/pypa/setuptools/commit/43a9c9bfa6aa626ec2a22540bea28d2ca77964be

Source: cve@mitre.org

Patch Third Party Advisory

https://github.com/pypa/setuptools/compare/v65.5.0...v65.5.1

Source: cve@mitre.org

Release Notes Third Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ADES3NLOE5QJKBLGNZNI2RGVOSQXA37R/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNA2BAH2ACBZ4TVJZKFLCR7L23BG5C3H/

Source: cve@mitre.org

https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/

Source: cve@mitre.org

Exploit Patch Technical Description Vendor Advisory

https://pyup.io/vulnerabilities/CVE-2022-40897/52495/

Source: cve@mitre.org

Third Party Advisory

https://security.netapp.com/advisory/ntap-20230214-0001/

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20240621-0006/

Source: cve@mitre.org

https://github.com/pypa/setuptools/blob/fe8a98e696241487ba6ac9f91faa38ade939ec5d/setuptools/package_index.py#L200