{"schemaVersion":3,"id":"CVE-2026-55199","aliases":["ALPINE-CVE-2026-55199","SUSE-SU-2026:22438-1","SUSE-SU-2026:3074-1","SUSE-SU-2026:3076-1","SUSE-SU-2026:3082-1","UBUNTU-CVE-2026-55199","DEBIAN-CVE-2026-55199","CGA-2g39-j7f4-h239","CGA-3qm6-j8vw-p2p2","CGA-jm85-m8vm-q6pf","CGA-jp2c-mp97-9592","CGA-vh47-g8h2-fg7r","CGA-xjq2-q72p-4r46"],"status":"published","duplicateOf":null,"title":null,"description":"libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSH_MSG_EXT_INFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. 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