EUVD-2026-24988

mkdir: -m exposes directory with umask perms before chmod race window...

mkdir: -m exposes directory with umask perms before chmod (race window)

The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions typically 0755 before subsequently changing them to the requested mode via a separate chmod system call. In multi-user environments, this introduces ...

uutils coreutils has an Incorrect Permission Assignment for Critical Resource

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...

EUVD-2026-24996

The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions e.g., 0644 before being restricted to their final mode e.g., 0600 later in the process. A local attacker can race to open the file...

GHSA-VF87-345H-9QHX Duplicate Advisory: uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mj6p-44ch-cq69. This link is maintained to preserve external references. Original Description The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory...

CVE-2026-35353

The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions typically 0755 before subsequently changing them to the requested mode via a separate chmod system call. In multi-user environments, this introduces ...

PT-2026-34493

The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions e.g., 0644 before being restricted to their final mode e.g., 0600 later in the process. A local attacker can race to open the file...

CVE-2026-32810: Incorrect Permission Assignment for Critical Resource

Halloy is an IRC application written in Rust. In versions on \nix and macOS prior to commit f180e41061db393acf65bc99f5c5e7397586d9cb, halloy creates its config directory and files using default umask permissions, which typically results in 0644 on files and 0755 on directories. This allows any...

gix-worktree-state nonexclusive checkout sets executable files world-writable

Summary gix-worktree-state specifies 0777 permissions when checking out executable files, intending that the umask will restrict them appropriately. But one of the strategies it uses to set permissions is not subject to the umask. This causes files in a repository to be world-writable in some...