UNKNOWN Go
Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh
GO-2026-6355 · CVE-2026-56855
Published · Modified
AI SAST
Find this class of vulnerability in your own code
Corgea's AI-native static analysis detects vulnerabilities like this one across your repositories, ranks them by exploitability, and returns review-ready fixes.
Description
Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection.
Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connection down instead of buffering and blocking.
References
Ready to move
Start Securing
Free, no credit card | First findings in minutes