CVE-2026-35368
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
31/100
Published: 2026-04-22
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
No Interaction
Conf. Impact
Integ. Impact
Scope Change
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
None
S:
Changed
C:
High
I:
High
A:
High
Description
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.
Weakness Classification (1)
References & Advisories (1)
Exploit
Issue Tracking
Vendor Advisory