httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade py3-httplib2 | Aug 22, 2024 | Feb 8, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Feb 8, 2021 |
| Debian | — | Upgrade python-httplib2 | Jul 30, 2024 | Feb 8, 2021 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 8, 2021 |
| Suse | — | Upgrade python2-httplib2Upgrade python3-httplib2Upgrade python-httplib2 | May 26, 2021 | Feb 8, 2021 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Feb 8, 2021 |
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