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Apache Airflow Providers OpenSearch CVE-2026-43826

| EUVD-2026-29042 MEDIUM
Insertion of Sensitive Information into Log File (CWE-532)
2026-05-11 apache GHSA-xccp-97wp-3gjg
6.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

5
Source Code Evidence Fetched
May 11, 2026 - 14:22 vuln.today
Analysis Generated
May 11, 2026 - 14:22 vuln.today
CVSS changed
May 11, 2026 - 14:22 NVD
6.5 (MEDIUM)
CVE Published
May 11, 2026 - 08:21 nvd
UNKNOWN (no severity yet)
CVE Published
May 11, 2026 - 08:21 nvd
MEDIUM 6.5

DescriptionNVD

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.

AnalysisAI

Apache Airflow Providers OpenSearch versions before 1.9.1 leak backend credentials in task logs when the OpenSearch connection host URL embeds credentials in the format https://user:password@server:9200. Any user with task-log read permission can extract these credentials from log output. …

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CVE-2026-43826 vulnerability details – vuln.today

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