CVE-2026-35379: Coreutils Uutils Coreutils Has An Incorrect Vulnerability

LOW
Advisory Identifier: GHSA-fhr3-xh3q-69w6
Share
CVSS 3.3
CWE-684
Published
Advisory Summary

CVE-2026-35379 is a LOW (CVSS 3.3) uutils coreutils has an incorrect vulnerability (CWE-684: Incorrect Provision of Specified Functionality) affecting Coreutils libraries in the crates.io ecosystem. The issue involves uutils coreutils has an incorrect provision of specified functionality issue. Remediation is available by upgrading affected packages to version 0.8.0.

CVE-2026-35379 at a Glance

CVE Identifier CVE-2026-35379
GHSA Identifier GHSA-fhr3-xh3q-69w6
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-684: Incorrect Provision of Specified Functionality
Affected Product Coreutils
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 3.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-35379

To remediate this vulnerability, upgrade all affected Coreutils dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

coreutils fixed: 0.8.0 
Upgrade coreutils to 0.8.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for coreutils

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-35379, inspect your project dependencies for Coreutils:

inspect dependencies for coreutils

Analyze the terminal output to locate any version of Coreutils in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.8.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-684: Incorrect Provision of Specified Functionality, where the code does not function according to its published specifications, potentially leading to incorrect usage. In Coreutils, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-35379 Affected Coreutils Versions

1 component(s)
Fixed Versions:
0.8.0
Product / Package Ecosystem Affected Versions Fixed Version
coreutils
 crates.io
< 0.8.0
0.8.0

References

NVD — CVE-2026-35379 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35379
Coreutils Source Repository REPOSITORY
https://github.com/uutils/coreutils/pull/11405
Security Fix Commit FIX COMMIT
https://github.com/uutils/coreutils/commit/358063f3367cb23a1e5db314cfdbfeb607749b3d
Coreutils Source Repository REPOSITORY
https://github.com/uutils/coreutils
Coreutils Release RELEASE
https://github.com/uutils/coreutils/releases/tag/0.8.0

Frequently Asked Questions

What is CVE-2026-35379?
CVE-2026-35379 is a security vulnerability in Coreutils involving uutils coreutils has an Incorrect Provision of Specified Functionality Issue under CWE-684: Incorrect Provision of Specified Functionality.
Which Coreutils versions are affected?
Affected versions include releases prior to 0.8.0 across affected packages: coreutils.
What version fixes CVE-2026-35379?
Upgrading to 0.8.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is coreutils affected?
Yes, coreutils is affected in releases prior to 0.8.0. Upgrade your dependency to 0.8.0 or later.
What is the CVSS score of CVE-2026-35379?
CVE-2026-35379 has a CVSS v3.1 base score of 3.3 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-35379?
CVE-2026-35379 is classified under CWE-684: Incorrect Provision of Specified Functionality (The code does not function according to its published specifications, potentially leading to incorrect usage.).
How can I check crates.io dependencies for CVE-2026-35379?
Run the dependency tree command: 'inspect dependencies for coreutils'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fhr3-xh3q-69w6",
  "modified" : "2026-04-30T18:04:14Z",
  "published" : "2026-04-22T18:31:46Z",
  "aliases" : [ "CVE-2026-35379" ],
  "summary" : "uutils coreutils has an Incorrect Provision of Specified Functionality Issue",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "coreutils"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.8.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35379"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/pull/11405"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/commit/358063f3367cb23a1e5db314cfdbfeb607749b3d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/uutils/coreutils"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/releases/tag/0.8.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-684" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-30T18:04:14Z",
    "nvd_published_at" : "2026-04-22T17:16:42Z"
  }
}