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TI-2026-31915 Aliases CVE-2026-43826GHSA-xccp-97wp-3gjg

Apache Airflow Providers OpenSearch: OpenSearch task-log handler leaks credentials embedded in the host URL

Priority LOW 29CWE-532Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-532.

Summary

The OpenSearch logging provider, when configured with a `host` URL that embeds credentials (for example `https://user:[email protected]:9200`), wrote the full host URL — including the embedded credentials — into task logs. Any user with task-log read permission could harvest the backend credentials. Users are advised to upgrade to `apache-airflow-providers-opensearch` 1.9.1 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the `[opensearch] host` URL.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0041 35th percentileScored 2026-11-07
Fix Fixed Apache Airflow Providers OpenSearch (Apache Software Foundation): 1.9.1apache-airflow-providers-opensearch (PyPI): 1.9.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Airflow Providers OpenSearchbefore 1.9.11.9.1Patch availableCNA
—apache-airflow-providers-opensearch (PyPI)before 1.9.11.9.1Patch availableGHSA-xccp-97wp-3gjg
  • Apache Airflow Providers OpenSearch VendorApache Affected before 1.9.1 Fixed in 1.9.1 Patch available CNA
  • apache-airflow-providers-opensearch (PyPI) Vendor— Affected before 1.9.1 Fixed in 1.9.1 Patch available GHSA-xccp-97wp-3gjg

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:apache-airflow-providers-opensearch:*:*:*:*:*:*:*:*before 1.9.1VulnerableApache
  • cpe:2.3:a:apache:apache-airflow-providers-opensearch:*:*:*:*:*:*:*:* Versions before 1.9.1 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache Airflow Providers OpenSearch (Apache Software Foundation) Fixed in 1.9.1
  • Fix · GHSA-xccp-97wp-3gjg apache-airflow-providers-opensearch (PyPI) Fixed in 1.9.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-43826
  2. 2026-10-03 Alias added: GHSA-xccp-97wp-3gjg
  3. 2026-10-05 EPSS moved to the 50th–90th percentile
  4. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

Advisory 3

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences