util-linux-main vulnerabilities
CVEs whose affected-version data names the util-linux-main package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
3 CVEsRSS
CVE-2026-78409High· 7.0PoCUtil-linux: util-linux: x-mount.subdir detached-tree resolution can escape via intermediate symlinks
The X-mount.subdir option uses a detached-tree fast path on Linux 6.15 and later and passes the configured subdirectory to open_tree() with AT_SYMLINK_NOFOLLOW. That flag does not stop intermediate symlink traversal or keep resolution in…
CVE-2026-78410High· 7.8PoCUtil-linux: util-linux: restricted bind mounts do not pin the source, allowing x-mount.owner/group/mode redirection
A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can red…
CVE-2026-78408High· 7.9PoCThe nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve()
The nsenter --join-cgroup option opens the target cgroup.procs file as root and leaves that file descriptor open across later namespace and credential changes and across execve(). Because the kernel checks later cgroup migrations using t…