{"schemaVersion":3,"id":"CVE-2026-47766","aliases":["SUSE-SU-2026:22247-1","SUSE-SU-2026:22395-1","UBUNTU-CVE-2026-47766","DEBIAN-CVE-2026-47766","openSUSE-SU-2026:11030-1","RHSA-2026:54855"],"status":"published","duplicateOf":null,"title":null,"description":"crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs `/dev` directory without `O_NOFOLLOW`. If an OCI bundle contains `rootfs/dev` as a symlink and the bundle configuration does not mount `/dev`, crun follows that symlink and creates the default device nodes and stdio symlinks at the symlink target outside the container rootfs. In a local rootful crun replay, this created fixed device nodes and symlinks outside the rootfs before crun returned failure. A pre-existing file named `ptmx` in the target directory was also replaced by crun's forced `ptmx -> pts/ptmx` symlink. 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