CVE-2026-35348: Coreutils Uutils Coreutils Has An Uncaught Vulnerability

MODERATE
Advisory Identifier: GHSA-f2jv-wjjc-2c94
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CVSS 5.5
CWE-248
Published
Advisory Summary

CVE-2026-35348 is a MODERATE (CVSS 5.5) uutils coreutils has an uncaught vulnerability (CWE-248: Uncaught Exception) affecting Coreutils libraries in the crates.io ecosystem. The issue involves uutils coreutils has an uncaught exception when encountering valid but non-utf-8 paths. Remediation is available in the latest vendor maintenance releases.

CVE-2026-35348 at a Glance

CVE Identifier CVE-2026-35348
GHSA Identifier GHSA-f2jv-wjjc-2c94
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-248: Uncaught Exception
Affected Product Coreutils
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 5.5

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:N/A:H).

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 None (I:N)
Availability High (A:H)

How to Fix CVE-2026-35348

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-2026-35348, 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-248: Uncaught Exception, where an exception is thrown from a function, but it is not caught. 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 sort utility in uutils coreutils is vulnerable to a process panic when using the --files0-from option with inputs containing non-UTF-8 filenames. The implementation enforces UTF-8 encoding and utilizes expect(), causing an immediate crash when encountering valid but non-UTF-8 paths. This diverges from GNU sort, which treats filenames as raw bytes. A local attacker can exploit this to crash the utility and disrupt automated pipelines.

CVE-2026-35348 Affected Coreutils Versions

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

References

NVD — CVE-2026-35348 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-35348
Coreutils Source Repository REPOSITORY
https://github.com/uutils/coreutils/issues/9696
Coreutils Source Repository REPOSITORY
https://github.com/uutils/coreutils

Frequently Asked Questions

What is CVE-2026-35348?
CVE-2026-35348 is a security vulnerability in Coreutils involving uutils coreutils has an Uncaught Exception When Encountering Valid but Non-UTF-8 Paths under CWE-248: Uncaught Exception.
Which Coreutils versions are affected?
Affected versions include releases prior to current release patches across affected packages: coreutils.
What version fixes CVE-2026-35348?
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-2026-35348?
CVE-2026-35348 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-35348?
CVE-2026-35348 is classified under CWE-248: Uncaught Exception (An exception is thrown from a function, but it is not caught.).
How can I check crates.io dependencies for CVE-2026-35348?
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-f2jv-wjjc-2c94",
  "modified" : "2026-04-29T23:02:15Z",
  "published" : "2026-04-22T18:31:45Z",
  "aliases" : [ "CVE-2026-35348" ],
  "summary" : "uutils coreutils has an Uncaught Exception When Encountering Valid but Non-UTF-8 Paths",
  "details" : "The sort utility in uutils coreutils is vulnerable to a process panic when using the --files0-from option with inputs containing non-UTF-8 filenames. The implementation enforces UTF-8 encoding and utilizes expect(), causing an immediate crash when encountering valid but non-UTF-8 paths. This diverges from GNU sort, which treats filenames as raw bytes. A local attacker can exploit this to crash the utility and disrupt automated pipelines.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "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-2026-35348"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/uutils/coreutils/issues/9696"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/uutils/coreutils"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-248" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-29T23:02:15Z",
    "nvd_published_at" : "2026-04-22T17:16:37Z"
  }
}