CVE-2026-35360Public exploit

Arbitrary file truncation via raced creation

Published Apr 22, 2026 · Updated Apr 22, 2026

TOCTOU in uutils coreutils touch 0.8.0 and earlier allows local users to truncate files through a raced file-creation path. After a missing-path check, File::create opens the path with O_CREAT and O_TRUNC, so a competing file or symlink is followed and its target is truncated. Exploitation requires concurrent write access to the pathname and winning a high-complexity race, with greater impact when touch runs with elevated privileges.

CVSS severity6.3
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

TOCTOU in uutils coreutils touch 0.8.0 and earlier allows local users to truncate files through a raced file-creation path. After a missing-path check, File::create opens the path with O_CREAT and O_TRUNC, so a competing file or symlink is followed and its target is truncated. Exploitation requires concurrent write access to the pathname and winning a high-complexity race, with greater impact when touch runs with elevated privileges.

The record

CVE
CVE-2026-35360
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
uutils
Product
coreutils
Classifications
CWE-367, T1485
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

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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

6.3Canonical Ltd.CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

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.

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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-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1485Data Destruction

Public exploit references

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

Technologies

Your stack

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Your stack

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