CVE-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
Pythongreprules fetch cve-2026-33654-python-channel-acl-fail-open-empty-allowlist --engine opengrepDescription
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
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