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VulnerabilityPublished

CVE-2026-42526: Apache Airflow Amazon provider · Incorrect Authorization

Affects Apache Airflow Amazon providerSource CVE Database V5

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Not known to be exploited · CVSS 5.3 Medium : upgrade to 9.28.0 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 9.28.0
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Apache Airflow Amazon provider and apache-airflow-providers-amazon to 9.28.0.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache Airflow Amazon providerAffected
  • <9.28.0
Fixed in
  • 9.28.0
PyPIapache-airflow-providers-amazonpkg:pypi/apache-airflow-providers-amazonOther threatsAffected
  • <9.28.0
Fixed in
  • 9.28.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available in apache-airflow-providers-amazon version 9.28.0 that fixes this vulnerability. Users of the experimental multi-tenant teams feature should upgrade to version 9.28.0 or later. Since this is a cloud-hosted service component, the vendor manages remediation for the cloud service; users should verify their provider version and update accordingly.

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.

References

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