{"id":"CLSA-2026-1786446507","summary":"libssh: Fix of 3 CVEs","details":"- CVE-2026-59843: reject a peer-supplied maximum packet size of zero to\n  prevent infinite loops in channel writes\n- CVE-2026-59848: track outstanding SFTP request IDs and reject responses\n  with unknown IDs to prevent unbounded client memory growth\n- CVE-2026-59845: handle ProxyCommand fork failures before storing the PID\n  to prevent cleanup from signaling unrelated processes","modified":"2026-10-26T09:43:51.061709295Z","published":"2026-08-11T11:08:40Z","upstream":["CVE-2026-59843","CVE-2026-59845","CVE-2026-59848"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1786446507.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59843"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59845"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59848"}],"affected":[{"package":{"name":"libssh","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/libssh?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.4-8.el9_2.tuxcare.els14"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786446507.json"}},{"package":{"name":"libssh-config","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/libssh-config?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.4-8.el9_2.tuxcare.els14"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786446507.json"}},{"package":{"name":"libssh-devel","ecosystem":"TuxCare:AlmaLinux:9.2","purl":"pkg:rpm/tuxcare/libssh-devel?distro=almalinux-9.2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.4-8.el9_2.tuxcare.els14"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786446507.json"}}],"schema_version":"1.9.0"}