{"id":"CLSA-2026-1781258405","summary":"Fix CVE(s): CVE-2026-4408","details":"   * SECURITY UPDATE: remote command execution via unescaped %u in the\n     \"check password script\" (samr password validation)\n     - debian/patches/CVE-2026-4408.patch: reject invalid/dangerous account\n       names, mask and single-quote the username before %u substitution,\n       export SAMBA_CPS_ACCOUNT_NAME, and restrict _samr_ValidatePassword to DCs\n     - CVE-2026-4408","modified":"2026-10-26T09:32:03.322157129Z","published":"2026-06-12T10:00:22Z","upstream":["CVE-2026-4408"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1781258405.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4408"}],"affected":[{"package":{"name":"ctdb","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/ctdb?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libnss-winbind","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libnss-winbind?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libpam-winbind","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libpam-winbind?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libparse-pidl-perl","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libparse-pidl-perl?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libsmbclient","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libsmbclient?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libsmbclient-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libsmbclient-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libwbclient-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libwbclient-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"libwbclient0","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libwbclient0?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"python-samba","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/python-samba?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"registry-tools","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/registry-tools?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-common","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-common?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-common-bin","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-common-bin?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-dsdb-modules","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-dsdb-modules?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-libs","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-libs?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-testsuite","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-testsuite?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"samba-vfs-modules","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/samba-vfs-modules?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"smbclient","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/smbclient?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}},{"package":{"name":"winbind","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/winbind?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.29+tuxcare.els7"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1781258405.json"}}],"schema_version":"1.9.0"}