Vulnerability in Uutils Coreutils
CVE-2026-35379
A logic error in the tr utility of uutils coreutils causes the program to incorrectly define the [:graph:] and [:print:] character classes. The implementation mistakenly includes the ASCII space character (0x20) in the [:graph:] class and excludes it from the [:print:] class, effectively reversing the standard behavior established by POSIX and GNU coreutils. This vulnerability leads to unintended data modification or loss when the utility is used in automated scripts or data-cleaning pipelines that rely on standard character class semantics. For example, a command executed to delete all graphical characters while intending to preserve whitespace will incorrectly delete all ASCII spaces, potentially resulting in data corruption or logic failures in downstream processing.
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/11405 (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-2026-35379?
- CVE-2026-35379 is a low-severity vulnerability in Uutils Coreutils, classified under CWE-684. CVSS score: 3.3/10. Published 2026-04-22.
- How severe is CVE-2026-35379?
- Low severity. CVSS v3 base score is 3.3 out of 10.