MOPBでPHPの脆弱性ばかり書いているので他の脆弱性も書いておきます。
Miles Egan discovered that mod_python, when used in output filter mode, did not handle output larger than 16384 bytes, and would display freed memory, possibly disclosing private data. Thanks to Jim Garrison of the Software Freedom Law Center for identifying the original bug as a security vulnerability.
出典:USN-430-1