CVE-2022-0391

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-02-09 · updated 2026-10-14
Weakness: CWE-74

Description

A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.

Affected products

Fedoraproject Fedora: 34, 35
Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
NetApp Hci: all versions
NetApp Hci Compute Node: all versions
NetApp Management Services For Element Software: all versions
NetApp ONTAP Select Deploy administration utility: all versions
NetApp Solidfire, Enterprise Sds & Hci Storage Node: all versions
Oracle Corporation Oracle HTTP Server: 12.2.1.3.0, 12.2.1.4.0
Oracle Corporation Oracle ZFS Storage Appliance Kit: 8.8
Python: before 3.6.14; from 3.7.0 before 3.7.11; from 3.8.0 before 3.8.11; from 3.9.0 before 3.9.5; 3.10.0-alpha1, 3.10.0-alpha2, 3.10.0-alpha3, 3.10.0-alpha4, 3.10.0-alpha5, 3.10.0-alpha6 — fixed in 3.6.14, 3.7.11, 3.8.11, 3.9.5

How to fix

Upgrade to a fixed version: Python 3.6.14, 3.7.11, 3.8.11, 3.9.5. Check the vendor advisory for mitigations.

References

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