CVE-2026-35380 MEDIUM

CVE-2026-35380: uutils coreutils cut Local Logic Error and Data Integrity Issue in Delimiter Parsing

Vendor Uutils
Product coreutils
Weakness CWE-20 · Input validation
Published April 22, 2026
Last update April 22, 2026

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

A logic error in the cut utility of uutils coreutils causes the program to incorrectly interpret the literal two-byte string '' (two single quotes) as an empty delimiter. The implementation mistakenly maps this string to the NUL character for both the -d (delimiter) and --output-delimiter options. This vulnerability can lead to silent data corruption or logic errors in automated scripts and data pipelines that process strings containing these characters, as the utility may unintentionally split or join data on NUL bytes rather than the intended literal characters.

Key dates

02Disclosure timeline

April 22, 2026 CVE published
April 22, 2026 Record updated