How severe is CVE-2026-42526?

CVE-2026-42526 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-42526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42526?

CVE-2026-42526 affects Apache Apache-airflow-providers-amazon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-42526 have an EU (EUVD) identifier?

Yes. CVE-2026-42526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30974.

When was CVE-2026-42526 published?

CVE-2026-42526 was published on 2026-05-19 and last updated on 2026-07-02.

CVE-2026-42526

CVE-2026-42526 is a medium-severity vulnerability in Apache Apache-airflow-providers-amazon with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30974
Weakness: CWE-863
Affected product: Apache Apache-airflow-providers-amazon
Published: 2026-05-19
Last modified: 2026-07-02

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.

Frequently asked questions

What is CVE-2026-42526?: 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.
How severe is CVE-2026-42526?: CVE-2026-42526 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-42526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42526?: CVE-2026-42526 affects Apache Apache-airflow-providers-amazon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-42526 have an EU (EUVD) identifier?: Yes. CVE-2026-42526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30974.
When was CVE-2026-42526 published?: CVE-2026-42526 was published on 2026-05-19 and last updated on 2026-07-02.

References

Affected products (1)

cpe:2.3:a:apache:apache-airflow-providers-amazon:*:*:*:*:*:*:*:*

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