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CVE-2026-33654: Python Channel Acl Fail Open Empty Allowlistcve-2026-33654-python-channel-acl-fail-open-empty-allowlist

Channel/sender ACL check is fail-open: when the configured allow list is empty or missing, the function returns True, granting access to every sender. A remote attacker can deliver messages (e.g. via an unauthenticated email/IMAP poll, webhook, or chat platform) and have them processed as trusted owner input, enabling indirect prompt injection and tool abuse

PythonCVE-2026-33654GHSA-4GMR-2VC8-7QH3CWE-1336CWE-290
by Provallyupdated 2026-06-12Apache-2.0
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