Vulnerability-Lookup

CVE-2026-35381 (GCVE-0-2026-35381)

Vulnerability from cvelistv5 – Published: 2026-04-22 16:09 – Updated: 2026-04-22 16:53

Title

uutils coreutils cut Local Logic Error and Data Integrity Issue in Output Filtering

Summary

A logic error in the cut utility of uutils coreutils causes the utility to ignore the -s (only-delimited) flag when using the -z (null-terminated) and -d '' (empty delimiter) options together. The implementation incorrectly routes this specific combination through a specialized newline-delimiter code path that fails to check the record suppression status. Consequently, uutils cut emits the entire record plus a NUL byte instead of suppressing it. This divergence from GNU coreutils behavior creates a data integrity risk for automated pipelines that rely on cut -s to filter out undelimited data.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-22 16:52 UTC

CWE

CWE-684 - Incorrect Provision of Specified Functionality

Assigner

canonical mitre root

References

2 references

URL	Tags
https://github.com/uutils/coreutils/pull/11394	issue-trackingpatch
https://github.com/uutils/coreutils/releases/tag/0.8.0	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Uutils	coreutils	Affected: 0 , < 0.8.0 (semver)	guessed

Credits

Zellic

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-35381

Vulnerability from fkie_nvd - Published: 2026-04-22 17:16 - Updated: 2026-06-17 10:40

Severity

3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	security@ubuntu.com	https://github.com/uutils/coreutils/pull/11394	Exploit, Issue Tracking, Patch
	security@ubuntu.com	https://github.com/uutils/coreutils/releases/tag/0.8.0	Release Notes

Impacted products

	Vendor	Product	Version
	uutils	coreutils	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/uutils",
          "defaultStatus": "unaffected",
          "packageName": "coreutils",
          "platforms": [
            "Linux",
            "Unix",
            "macOS"
          ],
          "product": "coreutils",
          "repo": "https://github.com/uutils/coreutils",
          "vendor": "Uutils",
          "versions": [
            {
              "lessThan": "0.8.0",
              "status": "affected",
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    }
  ],
  "id": "CVE-2026-35381",
  "lastModified": "2026-06-17T10:40:29.780",
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GHSA-532V-XP3F-837C

Vulnerability from github – Published: 2026-04-22 18:31 – Updated: 2026-07-06 21:54

Withdrawn 2026-07-06

Summary

Duplicate Advisory: uutils coreutils has an Incorrect Provision of Specified Functionality Issue in its cut Utility

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-pmfc-4wjj-gmhx. This link is maintained to preserve external references.

Original Description

Severity

3.3 (Low)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "coreutils"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
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            }
          ],
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        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-684"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-30T18:05:52Z",
    "nvd_published_at": "2026-04-22T17:16:43Z",
    "severity": "LOW"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-pmfc-4wjj-gmhx. This link is maintained to preserve external references.\n\n### Original Description\nA logic error in the cut utility of uutils coreutils causes the utility to ignore the -s (only-delimited) flag when using the -z (null-terminated) and -d \u0027\u0027 (empty delimiter) options together. The implementation incorrectly routes this specific combination through a specialized newline-delimiter code path that fails to check the record suppression status. Consequently, uutils cut emits the entire record plus a NUL byte instead of suppressing it. This divergence from GNU coreutils behavior creates a data integrity risk for automated pipelines that rely on cut -s to filter out undelimited data.",
  "id": "GHSA-532v-xp3f-837c",
  "modified": "2026-07-06T21:54:21Z",
  "published": "2026-04-22T18:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35381"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/pull/11394"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/commit/483f13e91830c468262aa1e010e753d6ae99c898"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uutils/coreutils"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/releases/tag/0.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: uutils coreutils has an Incorrect Provision of Specified Functionality Issue in its cut Utility",
  "withdrawn": "2026-07-06T21:54:21Z"
}

GHSA-PMFC-4WJJ-GMHX

Vulnerability from github – Published: 2026-07-06 21:54 – Updated: 2026-07-06 21:54

Summary

cut: -s ignored in -z -d '' newline-delimiter mode

Details

cut routes -z -d '' through a special newline-delimiter path that ignores the -s only-delimited flag, emitting whole undelimited records (plus NUL) that should be suppressed. Pipelines relying on cut -s to drop undelimited records process data that should be filtered.

printf 'abc' | cut -z -d '' -s -f 1 | od -An -tx1   # GNU: no output ; uutils: 61 62 63 00

Zellic private finding (zellic-ext/coreutils-private PR #102). Reported in the Zellic uutils coreutils Program Security Assessment (for Canonical, Jan 2026), audited commit 3a07ffc5a9bd4c283e75afa548ba1f1957bad242.

Severity

3.3 (Low)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "uu_cut"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35381"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-684"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-06T21:54:29Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "`cut` routes `-z -d \u0027\u0027` through a special newline-delimiter path that ignores the `-s` only-delimited flag, emitting whole undelimited records (plus NUL) that should be suppressed. Pipelines relying on `cut -s` to drop undelimited records process data that should be filtered.\n```\nprintf \u0027abc\u0027 | cut -z -d \u0027\u0027 -s -f 1 | od -An -tx1   # GNU: no output ; uutils: 61 62 63 00\n```\n\n---\n_Zellic private finding (zellic-ext/coreutils-private PR #102). Reported in the Zellic *uutils coreutils Program Security Assessment* (for Canonical, Jan 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`._",
  "id": "GHSA-pmfc-4wjj-gmhx",
  "modified": "2026-07-06T21:54:29Z",
  "published": "2026-07-06T21:54:29Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/security/advisories/GHSA-pmfc-4wjj-gmhx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35381"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/pull/11394"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/commit/483f13e91830c468262aa1e010e753d6ae99c898"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uutils/coreutils"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/releases/tag/0.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "cut: -s ignored in -z -d \u0027\u0027 newline-delimiter mode"
}

ubuntu-cve-2026-35381

Vulnerability from osv_ubuntu

Published

2026-04-22 17:16

Modified

2026-05-14 11:40

Summary

Details

Severity

3.3 (Low)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-35381	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-35381	REPORT
	https://github.com/uutils/coreutils/pull/11394	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rust-coreutils",
            "binary_version": "0.0.24-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rust-coreutils",
        "purl": "pkg:deb/ubuntu/rust-coreutils@0.0.24-2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.20-1",
        "0.0.22-1",
        "0.0.23-1",
        "0.0.23-2",
        "0.0.23-3",
        "0.0.24-1",
        "0.0.24-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rust-coreutils",
            "binary_version": "0.2.2-0ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-coreutils",
        "purl": "pkg:deb/ubuntu/rust-coreutils@0.2.2-0ubuntu2.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.30-1",
        "0.0.30-2",
        "0.0.30-2ubuntu2",
        "0.1.0-0ubuntu1",
        "0.1.0+git20250711.2ba3a33-0ubuntu1",
        "0.1.0+git20250711.2ba3a33-0ubuntu2",
        "0.1.0+git20250711.2ba3a33-0ubuntu3",
        "0.1.0+git20250711.2ba3a33-0ubuntu4",
        "0.1.0+git20250801.cf79675-0ubuntu1",
        "0.1.0+git20250813.4af2a84-0ubuntu2",
        "0.1.0+git20250813.4af2a84-0ubuntu4",
        "0.1.0+git20250813.4af2a84-0ubuntu6",
        "0.1.0+git20250813.4af2a84-0ubuntu7",
        "0.2.2-0ubuntu1",
        "0.2.2-0ubuntu2",
        "0.2.2-0ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A logic error in the cut utility of uutils coreutils causes the utility to ignore the -s (only-delimited) flag when using the -z (null-terminated) and -d \u0027\u0027 (empty delimiter) options together. The implementation incorrectly routes this specific combination through a specialized newline-delimiter code path that fails to check the record suppression status. Consequently, uutils cut emits the entire record plus a NUL byte instead of suppressing it. This divergence from GNU coreutils behavior creates a data integrity risk for automated pipelines that rely on cut -s to filter out undelimited data.",
  "id": "UBUNTU-CVE-2026-35381",
  "modified": "2026-05-14T11:40:57Z",
  "published": "2026-04-22T17:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-35381"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-35381"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/uutils/coreutils/pull/11394"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-35381"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-35381 (GCVE-0-2026-35381)

FKIE_CVE-2026-35381

GHSA-532V-XP3F-837C

Duplicate Advisory

Original Description

GHSA-PMFC-4WJJ-GMHX

ubuntu-cve-2026-35381

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour