CVE-2026-35341

High

Description

A vulnerability in uutils coreutils mkfifo allows for the unauthorized modification of permissions on existing files. When mkfifo fails to create a FIFO because a file already exists at the target path, it fails to terminate the operation for that path and continues to execute a follow-up set_permissions call. This results in the existing file's permissions being changed to the default mode (often 644 after umask), potentially exposing sensitive files such as SSH private keys to other users on the system.

SeverityHigh
CVSS7.1
Exploit probability—
ProductUutils Coreutils
PublishedApr 22, 2026
First seenApr 22, 2026
Weakness typeCWE-732CWE-732

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
uutils coreutilsNo range specified—

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