vulnerability
Gentoo Linux: CVE-2021-28363: urllib3: Multiple vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | Mar 15, 2021 | Jul 16, 2021 | Aug 13, 2025 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
Mar 15, 2021
Added
Jul 16, 2021
Modified
Aug 13, 2025
Description
The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config) doesn't verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted.
Solutions
gentoo-linux-upgrade-dev-lang-pythongentoo-linux-upgrade-dev-python-pypy3gentoo-linux-upgrade-dev-python-urllib3
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