CVE-2026-35379

uutils coreutils tr Local Logic Error and Data Integrity Issue in Character Class Handling

Published Apr 22, 2026 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-fhr3-xh3q-69w6 uutils coreutils has an Incorrect Provision of Specified Functionality Issue
History
Type Values Removed Values Added
CPEs cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*
Type Values Removed Values Added
First Time appeared Uutils
Uutils coreutils
Vendors & Products Uutils
Uutils coreutils
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title uutils coreutils tr Local Logic Error and Data Integrity Issue in Character Class Handling
Weaknesses CWE-684
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
canonical
Published
Updated
Apr 22, 2026, 4:59 PM
Reserved
Apr 2, 2026, 12:58 PM
Status
Analyzed
Published
Apr 22, 2026, 5:16 PM
Modified
Oct 26, 2026, 10:10 PM