CVE-2026-35354 — uutils coreutils mv Security Xattr TOCTOU Race in Cross-Device
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the mv utility of uutils coreutils during cross-device moves. The extended attribute (xattr) preservation logic u…
Published: 2026-04-22 · CVSS: 4.7 · CVSS 3.1
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the mv utility of uutils coreutils during cross-device moves. The extended attribute (xattr) preservation logic uses multiple path-based system calls that perform fresh path-to-inode lookups for each operation. A local attacker with write access to the directory can exploit this race to swap files between calls, causing the destination file to receive an inconsistent mix of security xattrs, such as SELinux labels or file capabilities.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7