{"id":"CVE-2026-49298","aliases":["BIT-airflow-2026-49298","GHSA-5j6p-jrrm-6x94","PYSEC-2026-2358"],"url":"https://o3.security/vulnerability/CVE-2026-49298","summary":"Apache Airflow: JWT Token Exposure in KubernetesExecutor Command-Line Arguments","details":"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.","published":"2026-06-01T07:34:32.229Z","modified":"2026-08-12T03:51:12.053139656Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00489,"percentile":0.39693,"asOf":"2026-08-13"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"apache-airflow-core","fixedVersion":"3.2.2"}],"fix":{"url":"https://github.com/apache/airflow/pull/60108","label":"apache/airflow#60108"},"references":[{"type":"WEB","url":"https://pypi.python.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49298.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/wo09vrks8189dzsot39rvrx3vnx102tt"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49298"},{"type":"FIX","url":"https://github.com/apache/airflow/pull/60108"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:12.053139656Z"}}