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Untriaged
Permalink CVE-2026-35360
6.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): LOCAL
  • Attack complexity (AC): HIGH
  • Privileges required (PR): LOW
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): HIGH
  • Availability impact (A): HIGH
created 6 days, 11 hours ago Activity log
  • Created suggestion
uutils coreutils touch Arbitrary File Truncation via TOCTOU Race Condition

The touch utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition during file creation. When the utility identifies a missing path, it later attempts creation using File::create(), which internally uses O_TRUNC. An attacker can exploit this window to create a file or swap a symlink at the target path, causing touch to truncate an existing file and leading to permanent data loss.

References

Affected products

coreutils

Matching in nixpkgs

pkgs.coreutils

GNU Core Utilities

  • nixos-unstable 9.10
    • nixpkgs-unstable 9.10
    • nixos-unstable-small 9.10
  • nixos-25.11 9.8
    • nixos-25.11-small 9.8
    • nixpkgs-25.11-darwin 9.8