CVE-2026-43826
Description
The OpenSearch logging provider, when configured with a `host` URL that embeds credentials (for example `https://user:password@server.example.com: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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | apache-airflow-providers-opensearch | <1.9.1 | 1.9.1 |
| PIP | apache-airflow-providers-opensearch | < 1.9.1 | 1.9.1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| apache | apache-airflow-providers-opensearch | {"endExcluding":"1.9.1"} | 1.9.1 |
References
- https://github.com/apache/airflow/pull/65509
- https://lists.apache.org/thread/bxsrqx1vwssovnwnrvgh9xcosptmf73y
- http://www.openwall.com/lists/oss-security/2026/05/10/2
- https://nvd.nist.gov/vuln/detail/CVE-2026-43826
- https://github.com/apache/airflow/commit/6a6b6ff409fb48c28bd63482828632a3c5a5bb93
- https://github.com/apache/airflow
- https://github.com/advisories/GHSA-xccp-97wp-3gjg
CWEs
CWE-532
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.