CVE-2026-35375
LOW3.3EPSS 0.01%uutils coreutils has an Improper Handling of Unicode Encoding Issue
Published: 4/22/2026Modified: 5/5/2026
Also known as:GHSA-vx9m-xjwf-8cqm
Description
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 packages (2)
- crates.io/coreutilsfrom 0, < 0.8.0
- Debian/rust-coreutilsfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-35375
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-35375
- PATCHhttps://github.com/uutils/coreutils
- WEBhttps://github.com/uutils/coreutils/commit/d2b9550fe821a9a10bf0cec057509211357363f1
- WEBhttps://github.com/uutils/coreutils/pull/11397
- WEBhttps://github.com/uutils/coreutils/releases/tag/0.8.0