This update for libssh2_org fixes the following issues:
CVE-2025-15661: out-of-bounds heap read vulnerability in the sftp_symlink() function in src/sftp.c (bsc#1268546).
CVE-2026-7598: integer overflow in function userauth_password of file src/userauth.c (bsc#1263890).
CVE-2026-58050: attacker controlled attribute count from a publickey-subsystem response is used without bounds
checking and can cause to a heap buffer overflow in a connecting libssh2 client (bsc#1269568).
CVE-2026-58051: public key list is increased and does not zero-initialized new entries, which can cause an
uninitialized pointer to be freed when a malformed response is sent by an SSH server (bsc#1269567).
CVE-2026-66032: Arbitrary code execution via double-free in SFTP session (bsc#1272737).
CVE-2026-66033: Denial of Service via integer underflow in AES-GCM cipher negotiation (bsc#1272736).
CVE-2026-66034: Information disclosure and potential arbitrary code execution via heap out-of-bounds read
(bsc#1272735).
CVE-2026-66035: Arbitrary code execution via heap buffer overflow during SSH negotiation (bsc#1272734).