GitHub Advisoryadvisory · crates.io

GHSA-hpfw-mqm3-33jh uutils coreutils has a Link Following issue

MEDIUM Published 2026-04-22 Modified 2026-04-30 Official page ↗
Aliases
CVE-2026-35359
Ecosystem
crates.io
Packages
coreutils
Severity
Moderate
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-59
Reviewed
2026-04-30

Affected packages

• crates.io coreutils: <= 0.8.0 (no fix yet)

Description

A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference intent. The utility checks if a source path is a symbolic link using path-based metadata but subsequently opens it without the O_NOFOLLOW flag. An attacker with concurrent write access can swap a regular file for a symbolic link during this window, causing a privileged cp process to copy the contents of arbitrary sensitive files into a destination controlled by the attacker.

Related

Alias · CVE (1)

  • CVE-2026-35359 A Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils allows an attacker to bypass no-dereference… vulnerability

Weakness · CWE (1)

  • CWE-59 Improper Link Resolution Before File Access weakness

References