Apache Airflow Amazon provider: Prevent unauthorized access to team-scoped secrets in AWS Secrets Manager and SSM Parameter Store backends

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

5.3 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

• CVE-2026-42526: 0.41% estimated exploitation activity in the next 30 days; percentile 35.63 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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 connid containing a / (e.g. "myteam/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 connid. Fixed in 9.28.0 by switching the team-scope separator to -- and rejecting team-shaped connids 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.

Published by the source

19 May 2026, 21:32 UTC

Last modified by the source

1 Jul 2026, 18:26 UTC

Source last checked

26 Oct 2026, 13:42 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-g9qc-qf28-hhqx

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-g9qc-qf28-hhqx

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# Patch Next advisory brief: CVE-2026-42526

Advisory: Apache Airflow Amazon provider: Prevent unauthorized access to team-scoped secrets in AWS Secrets Manager and SSM Parameter Store backends
IDs: CVE-2026-42526, GHSA-g9qc-qf28-hhqx
Record: https://patchnext.com/advisories/cve-2026-42526 (revision 2, source checked 26 Oct 2026, 13:42 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: apache-airflow-providers-amazon 9.28.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI apache-airflow-providers-amazon: affected < 9.28.0; fixed in 9.28.0

## Suggested inspection (read-only)
- `python -m pip show apache-airflow-providers-amazon`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on apache-airflow-providers-amazon.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-g9qc-qf28-hhqx (OSV record GHSA-g9qc-qf28-hhqx lists affected ranges: PyPI apache-airflow-providers-amazon >=0 <9.28.0 (fixed))
- Verified: https://github.com/advisories/GHSA-g9qc-qf28-hhqx (GitHub-reviewed advisory GHSA-g9qc-qf28-hhqx lists affected ranges: PyPI apache-airflow-providers-amazon >=0 <9.28.0)

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