Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the `backfill_id` 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` coerces to `1`); FastAPI resolves dependencies before endpoint validation, so the two acted on different Dags. An authenticated user holding edit permission on any single Dag could therefore read, pause and cancel backfills belonging to any other Dag, including moving another Dag's queued runs to `failed`. No non-default configuration is required and backfill ids are sequential, so finding a target is trivial. Users are advised to upgrade to apache-airflow 3.3.1 or later, which parses the backfill id with the same type the routes declare.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the
    `backfill_id` 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`
    coerces to `1`); FastAPI resolves dependencies before endpoint validation, so the two acted on different
    Dags. An authenticated user holding edit permission on any single Dag could therefore read, pause and
    cancel backfills belonging to any other Dag, including moving another Dag's queued runs to `failed`. No
    non-default configuration is required and backfill ids are sequential, so finding a target is trivial.
    Users are advised to upgrade to apache-airflow 3.3.1 or later, which parses the backfill id with the same
    type the routes declare. (CVE-2026-68968)

ID	Name	Product	Family	Type	Severity
472796	Echo: apache-airflow: security update to 3.3.1	Tenable Cloud Security	Echo Local Security Checks	Local	high
472796	Echo: apache-airflow: security update to 3.3.1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
472271	SCA: security update for apache-airflow (GHSA-j4jc-cq9h-xrhr)	Tenable Cloud Security	SCA Checks	Local	high
472271	SCA: security update for apache-airflow (GHSA-j4jc-cq9h-xrhr)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

Detections

Analytics

CVE-2026-68968

high

Tenable Plugins

high

high

high

high