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CVE-2026-35368

7.8 high SSVC exploitation: poc Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.8 · uutilsNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*

References 2