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CVE-2026-35344

Full vulnerability record from the local CVENow database.

Description

The dd utility in uutils coreutils suppresses errors during file truncation operations by unconditionally calling Result::ok() on truncation attempts. While intended to mimic GNU behavior for special files like /dev/null, the uutils implementation also hides failures on regular files and directories caused by full disks or read-only file systems. This can lead to silent data corruption in backup or migration scripts, as the utility may report a successful operation even when the destination file contains old or garbage data.

Severity
LOW
CVSS score
3.3 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-22 17:16:36.490000
Last modified
2026-10-26 00:10:00.150000
View original CVE JSON
{
  "id": "CVE-2026-35344",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-22T17:16:36.490",
  "lastModified": "2026-10-26T00:10:00.150",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The dd utility in uutils coreutils suppresses errors during file truncation operations by unconditionally calling Result::ok() on truncation attempts. While intended to mimic GNU behavior for special files like /dev/null, the uutils implementation also hides failures on regular files and directories caused by full disks or read-only file systems. This can lead to silent data corruption in backup or migration scripts, as the utility may report a successful operation even when the destination file contains old or garbage data."
    },
    {
      "lang": "es",
      "value": "La utilidad dd en uutils coreutils suprime errores durante las operaciones de truncamiento de archivos al llamar incondicionalmente a Result::ok() en los intentos de truncamiento. Aunque su intención es imitar el comportamiento de GNU para archivos especiales como [SystemPath], la implementación de uutils también oculta fallos en archivos regulares y directorios causados por discos llenos o sistemas de archivos de solo lectura. Esto puede llevar a una corrupción silenciosa de datos en scripts de copia de seguridad o migración, ya que la utilidad puede informar una operación exitosa incluso cuando el archivo de destino contiene datos antiguos o basura."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Uutils",
          "product": "coreutils",
          "defaultStatus": "affected",
          "collectionURL": "https://github.com/uutils",
          "packageName": "coreutils",
          "platforms": [
            "Linux",
            "Unix",
            "macOS"
          ],
          "repo": "https://github.com/uutils/coreutils"
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-22T18:04:37.730982Z",
          "id": "CVE-2026-35344",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-252"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:uutils:coreutils:-:*:*:*:*:rust:*:*",
              "matchCriteriaId": "4A9AF9E4-E17C-48AD-8051-B49998618839"
            }
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  "references": [
    {
      "url": "https://github.com/uutils/coreutils/issues/9745",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking"
      ]
    }
  ]
}