{"action":"Upgrade libssh2 to 1.11.1-r2 or later.","affected":[{"fixed":"1.11.1-r2","introduced":"0"}],"component":"libssh2","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.22","exploited":false,"fixed_versions":["1.11.1-r2"],"id":"tcs_01M5NFVMBESZE7FZ9MSRM4216A","modified_at":"2026-10-01T02:17:49.346830648Z","published_at":"2026-06-17T20:17:28.520Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-55199","https://security.alpinelinux.org/vuln/CVE-2026-55199"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-55199#Alpine:v3.22/libssh2","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-55199"}],"summary":"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 cau"}