vulnerability
Alpine Linux: CVE-2021-28363: Improper Certificate Validation
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | Mar 15, 2021 | Aug 22, 2024 | Aug 8, 2025 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
Mar 15, 2021
Added
Aug 22, 2024
Modified
Aug 8, 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.
Solution
alpine-linux-upgrade-py3-urllib3
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