The imaplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.CreditsOmar M. HasanReferenceshttps://github.com/python/cpython/issues/143921https://github.com/python/cpython/pull/143922https://mail.python.org/archives/list/security-announce@python.org/thread/DD7C7JZJYTBXMDOWKCEIEBJLBRU64OMR/https://github.com/python/cpython/commit/6262704b134db2a4ba12e85ecfbd968534f28b45
