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Message-ID: <df29bdb1-da27-5f0d-fcd8-4d4db69b79e9@apache.org>
Date: Tue, 19 May 2026 18:08:11 +0000
From: Vincent Beck <vincbeck@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-42526: Apache Airflow Amazon provider: Prevent
unauthorized access to team-scoped secrets in AWS Secrets Manager and SSM
Parameter Store backends
Severity: low
Affected versions:
- Apache Airflow Amazon provider (apache-airflow-providers-amazon) before 9.28.0
Description:
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.
Credit:
Justin Pakzad (remediation developer)
References:
https://github.com/apache/airflow/pull/65703
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-42526
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