CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

GHSA-5j6p-jrrm-6x94: Apache Airflow: Execution API JWT leaked via KubernetesExecutor worker command-line args

highCVSS 8.8CVE-2026-49298
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, 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.

Details

Source
GitHub Security Advisories (INTL · database · site)
Severity
high — CVSS 8.8
Published
2026-06-01
Last updated
2026-07-08
Exploitation
Not in CISA KEV at last sync

Original advisory: https://github.com/advisories/GHSA-5j6p-jrrm-6x94

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-49298coverage & exploitation statusNVD · CVE.org

More from GitHub Security Advisories