CVE-2026-35375: Uutils Coreutils

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

A logic error in the split utility of uutils coreutils causes the corruption of output filenames when provided with non-UTF-8 prefix or suffix inputs. The implementation utilizes to_string_lossy() when constructing chunk filenames, which automatically rewrites invalid byte sequences into the UTF-8 replacement character (U+FFFD). This behavior diverges from GNU split, which preserves raw pathname bytes intact. In environments utilizing non-UTF-8 encodings, this vulnerability leads to the creation of files with incorrect names, potentially causing filename collisions, broken automation, or the misdirection of output data.

Affected products

• Uutils Coreutils: before 0.8.0 (fixed in 0.8.0)

Published 2026-04-22. Last modified 2026-06-17.