Apache Airflow Providers OpenSearch und Elasticsearch: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen
WID-SEC-2026-1452 · first 11.05.2026 · updated 12.05.2026 · CVSS 6,5
What it is about
Apache Airflow ist eine Plattform zur programmatischen Erstellung, Planung und Überwachung von Workflows. Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Apache Airflow Providers OpenSearch und Elasticsearch ausnutzen, um Informationen offenzulegen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Apache Airflow Opensearch <1.9.1
- Apache Airflow Elasticsearch <6.5.3
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Apache Airflow Opensearch 1.9.1
- Apache Airflow Elasticsearch 6.5.3
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Apache Announce vom 2026-05-10 lists.apache.org
- Apache Announce vom 2026-05-10 lists.apache.org
- CVERecord vom 2026-05-10 www.cve.org
- CVERecord vom 2026-05-10 www.cve.org
CVE: CVE-2026-41018, CVE-2026-43826
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.