CVE-2026-35380Public exploit

Data corruption via quote-pair delimiter misparsing

Published Apr 22, 2026 · Updated Apr 22, 2026

Improper input validation in uutils coreutils cut before 0.8.0 allows local users to corrupt pipeline data via quote-pair delimiters. The get_delimiters function treats the literal two-byte string of two single quotes as empty and substitutes NUL for -d and --output-delimiter. Exploitation requires local control of cut arguments and silently changes field splitting or joining without confidentiality or availability impact.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in uutils coreutils cut before 0.8.0 allows local users to corrupt pipeline data via quote-pair delimiters. The get_delimiters function treats the literal two-byte string of two single quotes as empty and substitutes NUL for -d and --output-delimiter. Exploitation requires local control of cut arguments and silently changes field splitting or joining without confidentiality or availability impact.

The record

CVE
CVE-2026-35380
Published
Apr 22, 2026
Updated
Apr 22, 2026
Vendor
uutils
Product
coreutils
Classifications
CWE-20, T1565
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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.8.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

uutils · coreutilsversion=0 <0.8.0

Published CVSS scores

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

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-20Improper Input Validation
T1565Data Manipulation

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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