CVE-2026-35367: Coreutils Remote Code Execution Vulnerability

LOW
Advisory Identifier: GHSA-5hgf-628x-mcqf
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CVSS 3.3
CWE-732
Published
Advisory Summary

CVE-2026-35367 is a LOW (CVSS 3.3) remote code execution vulnerability (CWE-732: Incorrect Permission Assignment for Critical Resource) affecting Coreutils libraries in the crates.io ecosystem. The issue involves uutils coreutils has an incorrect permission assignment for critical resource. Remediation is available in the latest vendor maintenance releases.

CVE-2026-35367 at a Glance

CVE Identifier CVE-2026-35367
GHSA Identifier GHSA-5hgf-628x-mcqf
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-732: Incorrect Permission Assignment for Critical Resource
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:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-35367

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: Latest secure release 
Upgrade coreutils to Latest secure release
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-2026-35367, 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 the patched release), 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-732: Incorrect Permission Assignment for Critical Resource, where the product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. 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

The nohup utility in uutils coreutils creates its default output file, nohup.out, without specifying explicit restricted permissions. This causes the file to inherit umask-based permissions, typically resulting in a world-readable file (0644). In multi-user environments, this allows any user on the system to read the captured stdout/stderr output of a command, potentially exposing sensitive information. This behavior diverges from GNU coreutils, which creates nohup.out with owner-only (0600) permissions.

CVE-2026-35367 Affected Coreutils Versions

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

References

NVD — CVE-2026-35367 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35367
Coreutils Source Repository REPOSITORY
https://github.com/uutils/coreutils/issues/10021
Coreutils Source Repository REPOSITORY
https://github.com/uutils/coreutils

Frequently Asked Questions

What is CVE-2026-35367?
CVE-2026-35367 is a security vulnerability in Coreutils involving uutils coreutils has an Incorrect Permission Assignment for Critical Resource under CWE-732: Incorrect Permission Assignment for Critical Resource.
Which Coreutils versions are affected?
Affected versions include releases prior to current release patches across affected packages: coreutils.
What version fixes CVE-2026-35367?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is coreutils affected?
Yes, coreutils is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-35367?
CVE-2026-35367 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:L/I:N/A:N.
What CWE is associated with CVE-2026-35367?
CVE-2026-35367 is classified under CWE-732: Incorrect Permission Assignment for Critical Resource (The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.).
How can I check crates.io dependencies for CVE-2026-35367?
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-5hgf-628x-mcqf",
  "modified" : "2026-04-30T17:50:53Z",
  "published" : "2026-04-22T18:31:45Z",
  "aliases" : [ "CVE-2026-35367" ],
  "summary" : "uutils coreutils has an Incorrect Permission Assignment for Critical Resource",
  "details" : "The nohup utility in uutils coreutils creates its default output file, nohup.out, without specifying explicit restricted permissions. This causes the file to inherit umask-based permissions, typically resulting in a world-readable file (0644). In multi-user environments, this allows any user on the system to read the captured stdout/stderr output of a command, potentially exposing sensitive information. This behavior diverges from GNU coreutils, which creates nohup.out with owner-only (0600) permissions.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "coreutils"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.8.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35367"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/issues/10021"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/uutils/coreutils"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-732" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-30T17:50:53Z",
    "nvd_published_at" : "2026-04-22T17:16:40Z"
  }
}