CVE-2026-58051

CVE-2026-58051 affects libssh2 up to version 1.11.1. The vulnerability arises because libssh2 grows its publickey list using SSH2_REALLOC but does not zero-initialize the newly allocated entries before parsing populates them. If parsing fails and the code path cleans up, libssh2_publickey_list_fr...

EUVD-2026-39971

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...