# CVE-2026-35379

> Vulnerability · severity: **LOW** (CVSS 3.3).

## Description

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.

## Key facts

- **CVE ID:** CVE-2026-35379
- **Published:** 2026-04-22
- **CVSS severity:** LOW
- **CVSS base score:** 3.3
- **CWE codes:** CWE-684

## Affected products

- `uutils:coreutils`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35379

## Citation

> AI Analytics. CVE-2026-35379. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-35379. Derived from NIST NVD. Licensed CC0.

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