CVE-2026-35374 uutils coreutils split Arbitrary File Truncation via Time-of-Check to Time-of-Use (TOCTOU) Race Condition

A Time-of-Check to Time-of-Use TOCTOU vulnerability exists in the split utility of uutils coreutils. The program attempts to prevent data loss by checking for identity between input and output files using their file paths before initiating the split operation. However, the utility subsequently...

CVE-2026-35374

The CVE concerns the split utility of uutils coreutils, where a TOCTOU race exists between a path-based check and subsequent opening with truncation. An attacker with directory write access can swap path components (e.g., via a symlink) during the race, causing split to truncate and write to an u...