GO-2026-6355

Prevent DoS on deadlocked established channel in golang.org/x/crypto/ssh

En bref

Publiée
Mise à jour
CVE
CVE-2026-56855

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.

Paquets affectés

PaquetVersions
Go · golang.org/x/cryptointroduced 0, fixed 0.56.0

Références

Sources

SourceLicence
OSV.devCC-BY 4.0 — Go Vulnerability Database