Vulnerability in Uutils Coreutils
CVE-2026-35375
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 4.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Uutils Coreutils — versions 0
Weakness classification (CWE)
References
- github.com/uutils/coreutils/pull/11397 (issue-tracking, Exploit, Patch, patch, Issue Tracking)
- github.com/uutils/coreutils/releases/tag/0.8.0 (vendor-advisory, Release Notes)
Frequently asked questions
- What is CVE-2026-35375?
- CVE-2026-35375 is a low-severity vulnerability in Uutils Coreutils, classified under CWE-176. CVSS score: 3.3/10. Published 2026-04-22.
- How severe is CVE-2026-35375?
- Low severity. CVSS v3 base score is 3.3 out of 10.