CVE-2026-11853

{
  "id": "CVE-2026-11853",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-10T10:16:31.467",
  "lastModified": "2026-10-26T11:10:00.157",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Debusine is an integrated solution to build, distribute and maintain a Debian-based distribution. Debian source packages (.dsc) and upload artifacts (.changes) are manifest files that name the files that make up the artifact. The parser used to read these files in Debusine accepted arbitrary fully user-controlled paths. The mergeuploads task could be abused to create arbitrary symbolic links on a worker, overwriting any file that the worker user has access to."
    },
    {
      "lang": "es",
      "value": "Debusine es una solución integrada para construir, distribuir y mantener una distribución basada en Debian. Los paquetes fuente de Debian (.dsc) y los artefactos de carga (.changes) son archivos de manifiesto que nombran los archivos que componen el artefacto. El analizador utilizado para leer estos archivos en Debusine aceptaba rutas arbitrarias totalmente controladas por el usuario. La tarea mergeuploads podría ser abusada para crear enlaces simbólicos arbitrarios en un trabajador, sobrescribiendo cualquier archivo al que el usuario del trabajador tenga acceso."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Debian",
          "product": "debusine",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.12.0",
              "lessThan": "0.14.9",
              "versionType": "semver",
              "status": "affected",
              "changes": [
                {
                  "at": "0.14.9",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-10T18:49:26.303190Z",
          "id": "CVE-2026-11853",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://salsa.debian.org/freexian-team/debusine/-/commit/c24cdc49fb258714767546bdec5b09f8065d414e",
      "source": "[email protected]"
    },
    {
      "url": "https://salsa.debian.org/freexian-team/debusine/-/merge_requests/3103",
      "source": "[email protected]"
    },
    {
      "url": "https://salsa.debian.org/freexian-team/debusine/-/work_items/1484",
      "source": "[email protected]"
    }
  ]
}