{"id":"SUSE-SU-2026:4095-1","summary":"Security update for libssh2_org","details":"This update for libssh2_org fixes the following issues:\n\n- CVE-2025-15661: out-of-bounds heap read vulnerability in the sftp_symlink() function in src/sftp.c (bsc#1268546).\n- CVE-2026-7598: integer overflow in function `userauth_password` of file `src/userauth.c` (bsc#1263890).\n- CVE-2026-58050: attacker controlled attribute count from a publickey-subsystem response is used without bounds\n  checking and can cause to a heap buffer overflow in a connecting libssh2 client (bsc#1269568).\n- CVE-2026-58051: public key list is increased and does not zero-initialized new entries, which can cause an\n  uninitialized pointer to be freed when a malformed response is sent by an SSH server (bsc#1269567).\n- CVE-2026-66032: Arbitrary code execution via double-free in SFTP session (bsc#1272737).\n- CVE-2026-66033: Denial of Service via integer underflow in AES-GCM cipher negotiation (bsc#1272736).\n- CVE-2026-66034: Information disclosure and potential arbitrary code execution via heap out-of-bounds read\n  (bsc#1272735).\n- CVE-2026-66035: Arbitrary code execution via heap buffer overflow during SSH negotiation (bsc#1272734).\n","modified":"2026-09-14T18:23:38.127042989Z","published":"2026-09-09T08:34:01Z","related":["CVE-2025-15661","CVE-2026-58050","CVE-2026-58051","CVE-2026-66032","CVE-2026-66033","CVE-2026-66034","CVE-2026-66035","CVE-2026-7598"],"upstream":["CVE-2025-15661","CVE-2026-58050","CVE-2026-58051","CVE-2026-66032","CVE-2026-66033","CVE-2026-66034","CVE-2026-66035","CVE-2026-7598"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264095-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1263890"},{"type":"REPORT","url":"https://bugzilla.suse.com/1268546"},{"type":"REPORT","url":"https://bugzilla.suse.com/1269567"},{"type":"REPORT","url":"https://bugzilla.suse.com/1269568"},{"type":"REPORT","url":"https://bugzilla.suse.com/1272734"},{"type":"REPORT","url":"https://bugzilla.suse.com/1272735"},{"type":"REPORT","url":"https://bugzilla.suse.com/1272736"},{"type":"REPORT","url":"https://bugzilla.suse.com/1272737"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-15661"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-58050"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-58051"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66032"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66033"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66034"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-66035"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-7598"}],"affected":[{"package":{"name":"libssh2_org","ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","purl":"pkg:rpm/suse/libssh2_org&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0-150000.4.35.1"}]}],"ecosystem_specific":{"binaries":[{"libssh2-1-32bit":"1.11.0-150000.4.35.1","libssh2-1":"1.11.0-150000.4.35.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4095-1.json"}},{"package":{"name":"libssh2_org","ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","purl":"pkg:rpm/suse/libssh2_org&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0-150000.4.35.1"}]}],"ecosystem_specific":{"binaries":[{"libssh2-1":"1.11.0-150000.4.35.1","libssh2-1-32bit":"1.11.0-150000.4.35.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4095-1.json"}},{"package":{"name":"libssh2_org","ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","purl":"pkg:rpm/suse/libssh2_org&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.0-150000.4.35.1"}]}],"ecosystem_specific":{"binaries":[{"libssh2-1":"1.11.0-150000.4.35.1","libssh2-1-32bit":"1.11.0-150000.4.35.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4095-1.json"}}],"schema_version":"1.9.0"}