vulnerability

Gentoo Linux: CVE-2021-33503: urllib3: Multiple vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Jun 29, 2021
Added
Jul 16, 2021
Modified
Mar 31, 2026

Description

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.

Solution

gentoo-linux-upgrade-dev-python-urllib3
Title
Rapid7 Labs

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