{"id":"CLSA-2026-1791475845","summary":"Fix CVE(s): CVE-2026-87766","details":"   * SECURITY UPDATE: symlink traversal during sandbox setup lets a crafted\n     source tree redirect file/dir creation and mounts outside the sandbox\n     (sandbox escape)\n     - debian/patches/CVE-2026-87766.patch: resolve every destination inside\n       /newroot and every source inside /oldroot a component at a time\n       (safe_openat in utils.c), create and mount through O_PATH|O_NOFOLLOW fds\n       passed to the privileged helper (bind_mount_fd), and refuse to mount on\n       a symlink destination (bubblewrap.c, bind-mount.c, utils.c)\n     - CVE-2026-87766","modified":"2026-10-26T09:32:04.621085387Z","published":"2026-10-08T23:16:00Z","upstream":["CVE-2026-87766"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1791475845.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87766"}],"affected":[{"package":{"name":"bubblewrap","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/bubblewrap?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.1-1ubuntu0.1+tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1791475845.json"}}],"schema_version":"1.9.0"}