CVE-2026-35367 uutils coreutils nohup Information Disclosure via Insecure Default Output Permissions

What is CVE-2026-35367?

CVE-2026-35367 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 nohup utility in uutils coreutils creates its default output file, nohup.out, without specifying explicit restricted permissions. This causes the file to inherit umask-based permissions, typically resulting in a world-readable file (0644). In multi-user environments, this allows any user on the system to read the captured stdout/stderr output of a command, potentially exposing sensitive information. This behavior diverges from GNU coreutils, which creates nohup.out with owner-only (0600) permissions.

Weakness: CWE-732

Which versions are affected by CVE-2026-35367?

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

Products include Uutils Coreutils.

How do I fix CVE-2026-35367?

Apply the vendor's patch.

Is CVE-2026-35367 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35367 exists.

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-2026-35367, GHSA-5hgf-628x-mcqf, UBUNTU-CVE-2026-35367.