CVE-2026-35362 uutils coreutils Missing TOCTOU Protection on Non-Linux Unix Platforms in Safe Traversal Module

What is CVE-2026-35362?

CVE-2026-35362 is a low-severity vulnerability in Uutils coreutils, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The safe_traversal module in uutils coreutils, which provides protection against Time-of-Check to Time-of-Use (TOCTOU) symlink races using file-descriptor-relative syscalls, is incorrectly limited to Linux targets. On other Unix-like systems such as macOS and FreeBSD, the utility fails to utilize these protections, leaving directory traversal operations vulnerable to symlink race conditions.

Weakness: CWE-367

Which versions are affected by CVE-2026-35362?

2 open source packages ship an affected version, including uucore. It affects 1 product.

Products include Uutils Coreutils.

How do I fix CVE-2026-35362?

Upgrade uucore to 0.6.0 or later.

Is CVE-2026-35362 being exploited?

There is no known exploitation of CVE-2026-35362 in the wild and no public exploit code.

Other vulnerabilities in Uutils coreutils

• CVE-2026-35338 uutils coreutils chmod Path Traversal Bypass of --preserve-root High 7.3
• CVE-2026-35368 uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection High 7.2
• CVE-2026-35341 uutils coreutils mkfifo Unauthorized Permission Change on Existing Files High 7.1
• CVE-2026-35352 uutils coreutils mkfifo Privilege Escalation via TOCTOU Race Condition High 7.0
• CVE-2026-35349 uutils coreutils Path-Based Safety Bypass with --preserve-root Medium 6.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-35362, GHSA-w6xc-g9qj-vp32, UBUNTU-CVE-2026-35362.