{"id":"CLSA-2026-1786478067","summary":"Fix CVE(s): CVE-2026-66032","details":"   * SECURITY UPDATE: double free in sftp_open() reachable by a malicious\n     SSH server against an authenticated client opening an SFTP session\n     - debian/patches/CVE-2026-66032.patch: NULL the response buffer after\n       freeing it on the FX_OK path, so the if(badness) arm cannot free the\n       same stale pointer a second time when sftp_packet_require() fails\n       with anything other than LIBSSH2_ERROR_EAGAIN, in src/sftp.c\n     - CVE-2026-66032","modified":"2026-10-26T09:30:42.804375937Z","published":"2026-08-11T19:54:37Z","upstream":["CVE-2026-66032"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1786478067.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66032"}],"affected":[{"package":{"name":"libssh2-1","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libssh2-1?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-1ubuntu0.1+tuxcare.els3"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1786478067.json"}},{"package":{"name":"libssh2-1-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libssh2-1-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.0-1ubuntu0.1+tuxcare.els3"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1786478067.json"}}],"schema_version":"1.9.0"}