CVE-2026-42526: Apache Apache-Airflow-Providers-Amazon

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

In the AWS Secrets Manager and SSM Parameter Store secrets backends of `apache-airflow-providers-amazon` prior to 9.28.0, the team-scoping logic could resolve a `conn_id` containing a `/` (e.g. `"my_team/conn"`) to the same path as another team's team-scoped secret when the caller had no team context. A privileged caller without team context could therefore retrieve another team's secret by crafting a colliding `conn_id`. Fixed in 9.28.0 by switching the team-scope separator to `--` and rejecting team-shaped `conn_id`s when team context is absent. Affects the experimental multi-tenant teams feature only. Users are recommended to upgrade to `apache-airflow-providers-amazon` 9.28.0, which fixes the issue.

Affected products

• Apache Apache-Airflow-Providers-Amazon: before 9.28.0 (fixed in 9.28.0)

Published 2026-05-19. Last modified 2026-07-24.