QID 352365

<DIV ID="issue_overview"> the package python/cpython is vulnerable to web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking.
When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server.
This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter. (
cve-2021-23336 ) there's a flaw in python 3's pydoc.
A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access.
The highest risk of this flaw is to data confidentiality.
This flaw affects python versions before 3.8.9, python versions before 3.9.3 and python versions before 3.10.0a7. (
cve-2021-3426 ) </DIV>

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.