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gh-160369: Reject buffered plaintext after IMAP STARTTLS - #160370
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JelleZijlstra wants to merge 3 commits into
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JelleZijlstra wants to merge 3 commits into
JelleZijlstra wants to merge 3 commits into
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JelleZijlstra
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ChatGPT Codex Connector
JelleZijlstra
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October 22, 2026 22:01
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Reject unexpected plaintext buffered after the STARTTLS response before upgrading the connection, so it cannot be interpreted as TLS-protected server responses. Add regression coverage and a Security NEWS entry.
Closes #160369.