ELA-1814-1 python-httplib2 security update

multiple vulnerabilities

2026-08-30
Packagepython-httplib2
Version0.9.2+dfsg-1+deb9u1 (stretch), 0.11.3-2+deb10u1 (buster)
Related CVEs CVE-2020-11078 CVE-2021-21240 CVE-2026-59939


Multiple vulnerabilities were discovered in python-httplib2, a comprehensive Python HTTP client library:

CVE-2020-11078

Vulnerability that impacts on software that uses httplib2
with uri constructed by string concatenation, as opposed to proper urllib
building with escaping.

CVE-2021-21240

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

CVE-2026-59939

Unbounded decompression of HTTP response bodies encoded with gzip or deflate
Content-Encoding could result in denial of service.


For Debian 10 buster, these problems have been fixed in version 0.11.3-2+deb10u1.

For Debian 9 stretch, these problems have been fixed in version 0.9.2+dfsg-1+deb9u1.

We recommend that you upgrade your python-httplib2 packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.