CVE-2026-35380
uutils coreutils cut Local Logic Error and Data Integrity Issue in Delimiter Parsing
Description
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.
INFO
Published Date :
April 22, 2026, 5:16 p.m.
Last Modified :
April 29, 2026, 3:57 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | cc1ad9ee-3454-478d-9317-d3e869d708bc | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the uutils coreutils package to the latest version.
- Validate delimiter handling in scripts using the cut utility.
- Avoid using '' as a delimiter for the cut utility.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-35380.
| URL | Resource |
|---|---|
| https://github.com/uutils/coreutils/pull/11399 | Exploit Issue Tracking Patch |
| https://github.com/uutils/coreutils/releases/tag/0.8.0 | Release Notes |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-35380 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-35380
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-35380 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-35380 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 29, 2026
Action Type Old Value New Value Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:* versions up to (excluding) 0.8.0 Added Reference Type Canonical Ltd.: https://github.com/uutils/coreutils/pull/11399 Types: Exploit, Issue Tracking, Patch Added Reference Type Canonical Ltd.: https://github.com/uutils/coreutils/releases/tag/0.8.0 Types: Release Notes -
New CVE Received by [email protected]
Apr. 22, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Added CWE CWE-20 Added Reference https://github.com/uutils/coreutils/pull/11399 Added Reference https://github.com/uutils/coreutils/releases/tag/0.8.0