Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the GET /api/v2/dagSources/dagid endpoint, which returns the entire source file containing multiple DAGs without redacting those the user is not authorized to access. An attacker can...

CVE-2026-49296

Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. GET /api/v2/dagSources/dagid — and the equivalent Dag-source view in the UI — returned the entire source file without redacting Dags the caller was not...

CVE-2026-33264

A bug in BaseSerialization.deserialize allowed unrestricted importstring of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossin...

CVE-2026-33264

A bug in BaseSerialization.deserialize allowed unrestricted importstring of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossin...

EUVD-2026-42030

A bug in BaseSerialization.deserialize allowed unrestricted importstring of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossin...

CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()

A bug in BaseSerialization.deserialize allowed unrestricted importstring of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossin...

CVE-2026-48828

The Bulk Variables API in Apache Airflow called the redactor without passing the variable's key, so the key-based shouldhidevalueforkey check which triggers on secret-suffixed key names like password / token / secret could not fire for JSON-decodable variable values. An authenticated UI/API user...

CVE-2026-48828 Apache Airflow: Bulk JSON Variables bypass should_hide_value_for_key - redact() called without the key

The Bulk Variables API in Apache Airflow called the redactor without passing the variable's key, so the key-based shouldhidevalueforkey check which triggers on secret-suffixed key names like password / token / secret could not fire for JSON-decodable variable values. An authenticated UI/API user...

CVE-2026-48892

The Config API in Apache Airflow surfaced per-key secrets-backend overrides environment variables like AIRFLOWSECRETSBACKENDKWARGSECRETID and AIRFLOWWORKERSSECRETSBACKENDKWARGSECRETID as synthetic config options whose option names were not in sensitiveconfigvalues, so the masker did not redact...

PT-2026-56178

Name of the Vulnerable Software and Affected Versions Apache Airflow versions prior to 3.3.0 Description The Config API exposes per-key secrets-backend overrides, such as environment variables AIRFLOW SECRETS BACKEND KWARG SECRET ID and AIRFLOW WORKERS SECRETS BACKEND KWARG SECRET ID, as syntheti...

PT-2026-56175

Name of the Vulnerable Software and Affected Versions apache-airflow versions prior to 3.3.0 Description A bug in the BaseSerialization.deserialize function allows unrestricted import string of attacker-controlled class paths when the Scheduler or API Server loads a serialized DAG. A DAG author c...

CVE-2026-25219

The accesskey and connectionstring connection properties were not marked as sensitive names in secrets masker. This means that user with read permission could see the values in Connection UI, as well as when Connection was accidentaly logged to logs, those values could be seen in the logs. Azure...

CVE-2026-45426

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's str.lstrip to the requested path segment when verifying the JWT's sub...

CVE-2026-33858

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,...

BIT-AIRFLOW-2026-49298 Apache Airflow: JWT Token Exposure in KubernetesExecutor Command-Line Arguments

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...

BIT-AIRFLOW-2026-42359 Apache Airflow: Authenticated RCE via XCom PATCH endpoint — XComUpdateBody missing FORBIDDEN_XCOM_KEYS validator

A bug in Apache Airflow's XCom PATCH endpoint PATCH /api/v2/xcomEntries/key allowed an authenticated UI/API user with XCom write permission on a Dag to set XCom entries under reserved key names e.g. returnvalue that the matching POST endpoint already validated against FORBIDDENXCOMKEYS. The...

BIT-AIRFLOW-2026-41017 Apache Airflow: JWT cookie missing Secure flag in JWTRefreshMiddleware behind HTTPS-terminating proxy

Apache Airflow's JWTRefreshMiddleware set the JWT auth cookie without the Secure flag, so deployments running the Airflow API server behind an HTTPS-terminating reverse proxy e.g. nginx / Envoy / a managed load balancer that terminates TLS and forwards plaintext to the API server, the default...

BIT-AIRFLOW-2026-40963 Apache Airflow: DAG authorization bypass on /ui/structure/structure_data

The structuredata endpoint in the Airflow UI returned external dependency graph nodes for linked Dags without checking whether the caller had read permission on those linked Dags. An authenticated UI/API user authorized for one Dag could enumerate linked Dag IDs and dependency metadata for other...

BIT-AIRFLOW-2026-40861 Apache Airflow: Arbitrary File Read via Log Symlink following in FileTaskHandler

A Dag author could either a create a symlink under their task's log directory pointing to an arbitrary file readable by the API server process read-path attack — e.g. /etc/passwd or airflow.cfg or b supply a taskid containing .. sequences accepted by the Task SDK's KEYREGEX write-path attack, and...

CVE-2026-42252

Apache Airflow's official documentation at core-concepts/dag-run.html "Passing Parameters when triggering Dags" showed a verbatim BashOperatorbashcommand="echo value: dagrun.conf'conf1' " example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into...