FKIE_CVE-2026-49298

Vulnerability from fkie_nvd - Published: 2026-06-01 09:16 - Updated: 2026-11-03 07:20
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A bug in Apache Airflow's KubernetesExecutor caused JWT tokens used by worker pods to authenticate against the Execution API to be passed to the worker container as command-line arguments visible in the pod spec. An authenticated UI/API user with Kubernetes read-only access to the cluster (e.g. `pods/get` in the Airflow namespace) could harvest the JWT from `kubectl describe pod` output and then call state-mutating Execution API endpoints — triggering Dag runs, clearing runs, reading or writing Variables / Connections / XComs — as if they were a running task. Affects deployments using the `KubernetesExecutor`. Users are advised to upgrade to `apache-airflow` 3.2.2 or later. This is the airflow-core half of the same vulnerability addressed by [CVE-2026-27173](https://www.cve.org/CVERecord?id=CVE-2026-27173), which shipped the apache-airflow-providers-cncf-kubernetes side of the fix. Deployments that already upgraded `apache-airflow-providers-cncf-kubernetes` to 10.17.0 or later per the CVE-2026-27173 advisory should additionally upgrade `apache-airflow` to 3.2.2 or later to close the core-side surface — the two fixes are complementary, not duplicates.
References
security@apache.orghttps://github.com/apache/airflow/pull/60108Issue Tracking, Patch
security@apache.orghttps://lists.apache.org/thread/wo09vrks8189dzsot39rvrx3vnx102ttMailing List, Vendor Advisory
Impacted products
Vendor Product Version
apache airflow *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow",
          "packageURL": "pkg:pypi/apache-airflow",
          "product": "Apache Airflow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.0.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow-core",
          "packageURL": "pkg:pypi/apache-airflow-core",
          "product": "Apache Airflow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.2.2",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0893C3AA-26A4-4682-A36C-05E719EB2943",
              "versionEndExcluding": "3.2.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A bug in Apache Airflow\u0027s KubernetesExecutor caused JWT tokens used by worker pods to authenticate against the Execution API to be passed to the worker container as command-line arguments visible in the pod spec. An authenticated UI/API user with Kubernetes read-only access to the cluster (e.g. `pods/get` in the Airflow namespace) could harvest the JWT from `kubectl describe pod` output and then call state-mutating Execution API endpoints \u2014 triggering Dag runs, clearing runs, reading or writing Variables / Connections / XComs \u2014 as if they were a running task. Affects deployments using the `KubernetesExecutor`. Users are advised to upgrade to `apache-airflow` 3.2.2 or later. This is the airflow-core half of the same vulnerability addressed by [CVE-2026-27173](https://www.cve.org/CVERecord?id=CVE-2026-27173), which shipped the apache-airflow-providers-cncf-kubernetes side of the fix. Deployments that already upgraded `apache-airflow-providers-cncf-kubernetes` to 10.17.0 or later per the CVE-2026-27173 advisory should additionally upgrade `apache-airflow` to 3.2.2 or later to close the core-side surface \u2014 the two fixes are complementary, not duplicates."
    },
    {
      "lang": "es",
      "value": "Un error en el KubernetesExecutor de Apache Airflow caus\u00f3 que los tokens JWT utilizados por los pods de trabajador para autenticarse contra la API de Ejecuci\u00f3n se pasaran al contenedor de trabajador como argumentos de l\u00ednea de comandos visibles en la especificaci\u00f3n del pod. Un usuario autenticado de UI/API con acceso de solo lectura a Kubernetes en el cl\u00faster (por ejemplo, \u0027pods/get\u0027 en el espacio de nombres de Airflow) podr\u00eda recolectar el JWT de la salida de \u0027kubectl describe pod\u0027 y luego llamar a los puntos finales de la API de Ejecuci\u00f3n que mutan el estado - activando ejecuciones de Dag, borrando ejecuciones, leyendo o escribiendo Variables / Conexiones / XComs - como si fueran una tarea en ejecuci\u00f3n. Afecta a las implementaciones que utilizan el \u0027KubernetesExecutor\u0027. Se aconseja a los usuarios que actualicen a \u0027apache-airflow\u0027 3.2.2 o posterior. Esta es la mitad de airflow-core de la misma vulnerabilidad abordada por [CVE-2026-27173](https://www.cve.org/CVERecord?id=CVE-2026-27173), que envi\u00f3 el lado de apache-airflow-providers-cncf-kubernetes de la soluci\u00f3n. Las implementaciones que ya actualizaron \u0027apache-airflow-providers-cncf-kubernetes\u0027 a 10.17.0 o posterior seg\u00fan el aviso de CVE-2026-27173 deber\u00edan actualizar adicionalmente \u0027apache-airflow\u0027 a 3.2.2 o posterior para cerrar la superficie del lado del n\u00facleo - las dos soluciones son complementarias, no duplicadas."
    }
  ],
  "id": "CVE-2026-49298",
  "lastModified": "2026-11-03T07:20:55.103",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-49298",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-02T15:56:22.010586Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-01T09:16:20.770",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/apache/airflow/pull/60108"
    },
    {
      "source": "security@apache.org",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "url": "https://lists.apache.org/thread/wo09vrks8189dzsot39rvrx3vnx102tt"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-538"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}



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