CVE-2026-78662
Previously, a channel registered in the mux's chanList is not usable until it is established. A malicious peer was able flood the channel's incomingRequests, deadlocking the entire connection. Now, we add an atomic established state, set when a channel becomes usable. Until such a time, handlePacket drops every packet other than the open confirmation/failure, without blocking and without tearing down the connection.
- Published Sep 2, 2026
- CVSS 7.5 high
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available