GHSA-2cxp-xq3c-mjxx: Duplicate Advisory Uutils Coreutils' Mktemp Utility Doesn't Vulnerability

LOW
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CVSS 3.3
CWE-377
Published
Advisory Summary

GHSA-2cxp-xq3c-mjxx is a LOW (CVSS 3.3) uutils coreutils' mktemp utility doesn't vulnerability (CWE-377: Insecure Temporary File) affecting Duplicate Advisory libraries in the crates.io ecosystem. The issue involves uutils coreutils' mktemp utility doesn't properly handle an empty tmpdir environment variable. Remediation is available by upgrading affected packages to version 0.6.0.

GHSA-2cxp-xq3c-mjxx at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-2cxp-xq3c-mjxx
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-377: Insecure Temporary File
Affected Product Duplicate Advisory
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 GHSA-2cxp-xq3c-mjxx

To remediate this vulnerability, upgrade all affected Duplicate Advisory 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: 0.6.0 
Upgrade coreutils to 0.6.0
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 GHSA-2cxp-xq3c-mjxx, inspect your project dependencies for Duplicate Advisory:

inspect dependencies for coreutils

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.6.0), 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-377: Insecure Temporary File, where creating and using insecure temporary files can leave application and system data vulnerable to attack. In Duplicate Advisory, 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

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-2w8r-9xj7-69j5. This link is maintained to preserve external references. ### Original Description The mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid path. This causes temporary files to be created in the current working directory (CWD) instead of the intended secure temporary directory. If the CWD is more permissive or accessible to other users than /tmp, it may lead to unintended information disclosure or unauthorized access to temporary data.

GHSA-2cxp-xq3c-mjxx Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
0.6.0
Product / Package Ecosystem Affected Versions Fixed Version
coreutils
 crates.io
< 0.6.0
0.6.0

References

NVD — GHSA-2cxp-xq3c-mjxx NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35342
Duplicate Advisory Source Repository REPOSITORY
https://github.com/uutils/coreutils/pull/10566
Security Fix Commit FIX COMMIT
https://github.com/uutils/coreutils/commit/eb25ec328b226d8fbbaa4058bf9187165bf06d51
Duplicate Advisory Source Repository REPOSITORY
https://github.com/uutils/coreutils
Duplicate Advisory Release RELEASE
https://github.com/uutils/coreutils/releases/tag/0.6.0

Frequently Asked Questions

What is GHSA-2cxp-xq3c-mjxx?
GHSA-2cxp-xq3c-mjxx is a security vulnerability in Duplicate Advisory involving uutils coreutils' mktemp utility doesn't properly handle an empty TMPDIR environment variable under CWE-377: Insecure Temporary File.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 0.6.0 across affected packages: coreutils.
What version fixes GHSA-2cxp-xq3c-mjxx?
Upgrading to 0.6.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is coreutils affected?
Yes, coreutils is affected in releases prior to 0.6.0. Upgrade your dependency to 0.6.0 or later.
What is the CVSS score of GHSA-2cxp-xq3c-mjxx?
GHSA-2cxp-xq3c-mjxx 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 GHSA-2cxp-xq3c-mjxx?
GHSA-2cxp-xq3c-mjxx is classified under CWE-377: Insecure Temporary File (Creating and using insecure temporary files can leave application and system data vulnerable to attack.).
How can I check crates.io dependencies for GHSA-2cxp-xq3c-mjxx?
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-2cxp-xq3c-mjxx",
  "modified" : "2026-07-06T19:50:32Z",
  "published" : "2026-04-22T18:31:44Z",
  "withdrawn" : "2026-07-06T19:50:32Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: uutils coreutils' mktemp utility doesn't properly handle an empty TMPDIR environment variable",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2w8r-9xj7-69j5. This link is maintained to preserve external references.\n\n### Original Description\nThe mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid path. This causes temporary files to be created in the current working directory (CWD) instead of the intended secure temporary directory. If the CWD is more permissive or accessible to other users than /tmp, it may lead to unintended information disclosure or unauthorized access to temporary data.",
  "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"
      }, {
        "fixed" : "0.6.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-35342"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/pull/10566"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/commit/eb25ec328b226d8fbbaa4058bf9187165bf06d51"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/uutils/coreutils"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/releases/tag/0.6.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-377" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-29T22:53:30Z",
    "nvd_published_at" : "2026-04-22T17:16:36Z"
  }
}