CVE-2022-0391
HighSummary
A flaw was found in Python's urllib.parse module where the urlparse method does not sanitize input, allowing characters like ' ' and ' ' in the URL path. This can lead to CRLF injection attacks.
Risk Assessment
An attacker can exploit this vulnerability to inject malicious HTTP headers or manipulate server responses, potentially leading to session hijacking, user redirection, or other injection attacks.
Recommendation
Update Python to a patched version (e.g., Python 3.10.3 or later) immediately. As a workaround, manually sanitize input before passing it to urlparse.
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http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, e.g., by inserting CR and LF control characters in the first argument of HTTPConnection.request.
Original NVD description (English source)
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 at
Vulnerability data from NVD (NIST) · CISA KEV · EPSS