BaselineWatch
Desk

CVE-2026-35359

4.7 medium SSVC exploitation: poc Analyzed

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 4.7 · uutilsNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*

References 2