OpenClaw: Zalo channel downloads media before sender authorization

Summary

The Zalo image path fetched and stored inbound media before the DM/pairing authorization checks ran.

Impact

Unauthorized senders could force network fetches and disk writes in the inbound media store even when the message itself was rejected.

Affected Component

extensions/zalo/src/monitor.ts

Fixed Versions

• Affected: <= 2026.3.24
• Patched: >= 2026.3.28
• Latest stable 2026.3.28 contains the fix.

Fix

Fixed by commit 68ceaf7a5f (zalo: gate image downloads before DM auth).

OpenClaw thanks @AntAISecurityLab for reporting.