CVE-2026-35368: Uutils Coreutils

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

A vulnerability exists in the chroot utility of uutils coreutils when using the --userspec option. The utility resolves the user specification via getpwnam() after entering the chroot but before dropping root privileges. On glibc-based systems, this can trigger the Name Service Switch (NSS) to load shared libraries (e.g., libnss_*.so.2) from the new root directory. If the NEWROOT is writable by an attacker, they can inject a malicious NSS module to execute arbitrary code as root, facilitating a full container escape or privilege escalation.

Affected products

• Uutils Coreutils: affected versions not specified

Published 2026-04-22. Last modified 2026-06-17.