CVE-2026-58076

Apache Airflow CVE-2026-58076 describes an unguarded import_string() deserialization path in the serialization layer (BaseSerialization.deserialize) that can import and invoke arbitrary callables via a serialized blob placed in executor_config. The vulnerability can be triggered by a DAG author a...

CVE-2026-58076 Apache Airflow: Unguarded import_string() of airflow_exc_ser / base_exc_ser exception nodes in BaseSerialization.deserialize enables DAG-author RCE on Scheduler / API Server

Apache Airflow's serialization layer reconstructed exception nodes by calling importstring on a class name taken from the serialized blob and instantiating it with arguments from the same blob, with no restriction on what could be imported. An operator's executorconfig reaches that branch, so a D...

EUVD-2026-57312

Apache Airflow's XCom GET /api/v2/.../xcomEntries/key?deserialize=true endpoint passed a string-literal payload through BaseXCom.deserializevalue without the checkforbiddenxcomkeys guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary airflow. classes ...

CVE-2026-59242

Apache Airflow vulnerability CVE-2026-59242: The XCom GET /api/v2/{...}/xcomEntries/{key}?deserialize=true endpoint can deserialize a string-literal payload via BaseXCom.deserialize_value without the _check_forbidden_xcom_keys guard, enabling an authenticated API user with XCom write-and-read acc...

CVE-2026-59242 Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint

Apache Airflow's XCom GET /api/v2/.../xcomEntries/key?deserialize=true endpoint passed a string-literal payload through BaseXCom.deserializevalue without the checkforbiddenxcomkeys guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary airflow. classes ...

CVE-2026-59242 Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint

Apache Airflow's XCom GET /api/v2/.../xcomEntries/key?deserialize=true endpoint passed a string-literal payload through BaseXCom.deserializevalue without the checkforbiddenxcomkeys guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary airflow. classes ...

CVE-2026-65017

CVE-2026-65017 describes a masking bypass in Apache Airflow’s Config API in multi-team deployments. A Viewer with only configuration-read access could read a team-scoped Celery broker URL and its embedded credentials in cleartext, even though the global option is masked. The issue arises because ...

EUVD-2026-57272

Apache Airflow's Config API did not mask team-scoped sensitive configuration values in multi-team deployments. When an administrator has enabled multi-team mode and exposed the Config API, an authenticated Viewer holding only configuration-read access — with no prior access to the secret — could...

CVE-2026-65017 Apache Airflow: Config API: team-scoped Celery broker secret disclosed to a Viewer (multi-team masking bypass)

Apache Airflow's Config API did not mask team-scoped sensitive configuration values in multi-team deployments. When an administrator has enabled multi-team mode and exposed the Config API, an authenticated Viewer holding only configuration-read access — with no prior access to the secret — could...

CVE-2026-65017

Apache Airflow's Config API did not mask team-scoped sensitive configuration values in multi-team deployments. When an administrator has enabled multi-team mode and exposed the Config API, an authenticated Viewer holding only configuration-read access — with no prior access to the secret — could...

CVE-2026-65017 Apache Airflow: Config API: team-scoped Celery broker secret disclosed to a Viewer (multi-team masking bypass)

Apache Airflow's Config API did not mask team-scoped sensitive configuration values in multi-team deployments. When an administrator has enabled multi-team mode and exposed the Config API, an authenticated Viewer holding only configuration-read access — with no prior access to the secret — could...

CVE-2026-68968

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfillid path segment failed to parse. The authorization dependency parsed it with int while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int rejects 1.0...

CVE-2026-68968 Apache Airflow: Authorization bypass in the Backfill API through conflicting interpretations of the backfill id

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfillid path segment failed to parse. The authorization dependency parsed it with int while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int rejects 1.0...

CVE-2026-68968 Apache Airflow: Authorization bypass in the Backfill API through conflicting interpretations of the backfill id

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfillid path segment failed to parse. The authorization dependency parsed it with int while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int rejects 1.0...

EUVD-2026-57271

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfillid path segment failed to parse. The authorization dependency parsed it with int while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int rejects 1.0...

CVE-2026-68968

The CVE affects Apache Airflow (Backfill API). A mismatch between dependency parsing and endpoint validation for backfill_id (int() vs NonNegativeInt) allows an authenticated user with edit rights on one Dag to read, pause, and cancel backfills for other Dags. FastAPI resolves dependencies before...

CVE-2026-68968 Apache Airflow: Authorization bypass in the Backfill API through conflicting interpretations of the backfill id

Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the backfillid path segment failed to parse. The authorization dependency parsed it with int while the route handler parsed it as pydantic's NonNegativeInt, which accepts values int rejects 1.0...

EUVD-2026-57270

Apache Airflow wrote Variable values and Connection extra contents to the audit log in cleartext when they were submitted through the bulk endpoints PATCH /api/v2/variables and PATCH /api/v2/connections. The audit-log masking recognised only top-level request fields, and a bulk request nests its...

CVE-2026-68076 Apache Airflow: Connections test API: team-scope guard bypass resolves another team's environment Connection

Apache Airflow's environment-variable secrets backend resolved a team-scoped Connection or Variable from the wrong team's scope. The guard meant to prevent this only ran when no team scope was supplied, and its pattern could not match a team name containing an underscore, which team names are...

CVE-2026-68076

Apache Airflow CVE-2026-68076 affects the environment-variable secrets backend in multi-team mode. A team-scoped secret lookup could bypass the team-scope guard due to an underscore in a team name, causing a global read of AIRFLOW_CONN_____ and letting an authenticated user in one team access ano...