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CVE-2026-33858

Full vulnerability record from the local CVENow database.

Description

Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which resolves this issue.

Severity
HIGH
CVSS score
8.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-13 15:17:33.343000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-33858",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-13T15:17:33.343",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.\n\n\nUsers are recommended to upgrade to Apache Airflow 3.2.0, which resolves this issue."
    },
    {
      "lang": "es",
      "value": "Autores de DAGs, quienes normalmente no deberían poder ejecutar código en el contexto del servidor web, podrían crear una carga útil de XCom haciendo que el servidor web ejecute código arbitrario. Dado que los Autores de DAGs ya son de alta confianza, la severidad de este problema es Baja.\n\nSe recomienda a los usuarios actualizar a Apache Airflow 3.2.0, que resuelve este problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Airflow",
          "defaultStatus": "unaffected",
          "collectionURL": "https://pypi.python.org",
          "packageName": "apache-airflow",
          "versions": [
            {
              "version": "3.1.8",
              "lessThan": "3.2.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-13T00:00:00+00:00",
          "id": "CVE-2026-33858",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.1.8",
              "versionEndExcluding": "3.2.0",
              "matchCriteriaId": "99AE110A-CD12-4E42-AD9A-9FDA4940E6E2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/apache/airflow/pull/64148",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://lists.apache.org/thread/1npt3o2x81s0gw9tmfcv4n7p1z9hdmy0",
      "source": "[email protected]",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/04/13/7",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    }
  ]
}