{"action":"Upgrade libssh to 0.10.6-0+deb12u3 or later.","affected":[{"fixed":"0.10.6-0+deb12u3","introduced":"0"}],"component":"libssh","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["0.10.6-0+deb12u3"],"id":"tcs_01M5NT60NN0TPMFSVYEQ3K8S52","modified_at":"2026-10-20T21:00:07.282237675Z","published_at":"2026-07-21T13:17:18.143Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-59846","https://security-tracker.debian.org/tracker/CVE-2026-59846"],"severity":{"label":"low","score":3.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-59846","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-59846"}],"summary":"A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior."}