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CVE-2026-49298

CVE-2026-49298 · Apache Airflow: JWT Token Exposure in KubernetesExecutor Command-Line Arguments

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.8 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • apache airflow

    Versions
    • ≥ 0, < 3.2.2: Affected (semver)

    Update to 3.2.2

  • apache-airflow-core PyPI

    Versions
    • 3.0.0
    • 3.0.0rc1
    • 3.0.0rc1.post1
    • 3.0.0rc1.post2
    • 3.0.0rc1.post3
    • 3.0.0rc1.post4
    • 3.0.0rc2
    • 3.0.0rc3
    • 3.0.0rc4
    • 3.0.1
    • 3.0.1rc1
    • 3.0.2
    • 3.0.2rc1
    • 3.0.2rc2
    • 3.0.3
    • 3.0.3rc1
    • 3.0.3rc2
    • 3.0.3rc3
    • 3.0.3rc4
    • 3.0.3rc5
    • 3.0.3rc6
    • 3.0.4
    • 3.0.4rc1
    • 3.0.4rc2
    • 3.0.5
    • 3.0.5rc1
    • 3.0.5rc2
    • 3.0.5rc3
    • 3.0.6
    • 3.0.6rc1
    • 3.0.6rc2
    • 3.1.0
    • 3.1.0b1
    • 3.1.0b2
    • 3.1.0rc1
    • 3.1.0rc2
    • 3.1.1
    • 3.1.1rc1
    • 3.1.1rc2
    • 3.1.2
    • 3.1.2rc1
    • 3.1.2rc2
    • 3.1.3
    • 3.1.3rc1
    • 3.1.4
    • 3.1.4rc1
    • 3.1.4rc2
    • 3.1.5
    • 3.1.5rc1
    • 3.1.6
    • 3.1.6rc1
    • 3.1.7
    • 3.1.7rc1
    • 3.1.7rc2
    • 3.1.8
    • 3.1.8rc1
    • 3.1.8rc2
    • 3.2.0
    • 3.2.0b1
    • 3.2.0b2
    • 3.2.0rc1
    • 3.2.0rc2
    • 3.2.1
    • 3.2.1rc1
    • 3.2.1rc2
    • 3.2.1rc3
    • 3.2.2rc1
    • 3.2.2rc2
    • 3.2.2rc3
    Affected ranges
    • ECOSYSTEM: < 3.2.2

    Update to 3.2.2

Original sources

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