GHSA-5phf-pp7p-vc2rMediumCVSS 6.5
Using default SSLContext for HTTPS requests in an HTTPS proxy doesn't verify certificate hostname for proxy connection
🔗 CVE IDs covered (1)
📋 Description
Impact
Users who are using an HTTPS proxy to issue HTTPS requests and haven't configured their own SSLContext via proxy_config.
Only the default SSLContext is impacted.
Patches
urllib3 >=1.26.4 has the issue resolved. urllib3<1.26 is not impacted due to not supporting HTTPS requests via HTTPS proxies.
Workarounds
Upgrading is recommended as this is a minor release and not likely to break current usage.
Configuring an SSLContext with check_hostname=True and passing via proxy_config instead of relying on the default SSLContext
For more information
If you have any questions or comments about this advisory:
- Email us at [email protected]
🎯 Affected products1
- pip/urllib3:>= 1.26.0, < 1.26.4
🔗 References (16)
- https://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2r
- https://nvd.nist.gov/vuln/detail/CVE-2021-28363
- https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0
- https://github.com/urllib3/urllib3/releases/tag/1.26.4
- https://github.com/urllib3/urllib3/commits/main
- https://github.com/urllib3/urllib3/blob/main/CHANGES.rst#1264-2021-03-15
- https://security.gentoo.org/glsa/202107-36
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://github.com/pypa/advisory-db/tree/main/vulns/urllib3/PYSEC-2021-59.yaml
- https://security.gentoo.org/glsa/202305-02
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL
- https://pypi.org/project/urllib3/1.26.4
- https://security.netapp.com/advisory/ntap-20240621-0007
- https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2021-59.yaml
- https://github.com/advisories/GHSA-5phf-pp7p-vc2r