What’s Vulnerable › Vulnerabilities

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

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-22 · updated 2026-10-26
• Weakness: CWE-732

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.

Affected products

• Uutils coreutils: all versions

References

• https://github.com/uutils/coreutils/issues/10021
• https://github.com/uutils/coreutils/issues/10021

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