CVE-2022-40897

pypa-setuptools: Regular Expression Denial of Service (ReDoS) in package_index.py

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Severity

Moderate

Red Hat Product Security

5.9

CVSS 3.1

Review impact separately from score.

Published · December 22, 2022

Updated · June 28, 2026

Description

A flaw was found in Python Setuptools due to a regular expression Denial of Service (ReDoS) present in package_index.py. This issue could allow a remote attacker to cause a denial of service via HTML in a crafted package or custom PackageIndex page.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-185 · Incorrect Regular Expression