JLSEC-2026-663 libssh2 through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize...

libssh2 through 1.11.1 grows its publickey list with SSH2REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2publickeylistfree operating on an uninitialized entry. A malicious SSH server offering the publickey...