CVE-2026-35373Public exploit

Local service interruption via UTF-8 path rejection

Published Apr 22, 2026 · Updated Apr 22, 2026

Improper Unicode handling in uutils coreutils before 0.6.0 allows local users to interrupt ln target-directory operations. The ln target-directory path handling enforces UTF-8 on source filename bytes, then fails to stat valid Unix paths containing non-UTF-8 bytes. The failure requires a local user or automated task to supply such a filename and is limited to a nonzero exit without link creation.

CVSS severity3.3
Low
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper Unicode handling in uutils coreutils before 0.6.0 allows local users to interrupt ln target-directory operations. The ln target-directory path handling enforces UTF-8 on source filename bytes, then fails to stat valid Unix paths containing non-UTF-8 bytes. The failure requires a local user or automated task to supply such a filename and is limited to a nonzero exit without link creation.

The record

CVE
CVE-2026-35373
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
uutils
Product
coreutils
Classifications
CWE-176
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

uutils · coreutilsAffected versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.3Canonical Ltd.CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-176Improper Handling of Unicode Encoding

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo