CVE-2026-43826: Apache Airflow Providers OpenSearch · Sensitive Data in Logs
Affects Apache Airflow Providers OpenSearchSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 1.9.1 when convenient.
Data as of 9 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.9.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade Apache Airflow Providers OpenSearch and apache-airflow-providers-opensearch to 1.9.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache Airflow Providers OpenSearch | Affected
| Fixed in
|
PyPIapache-airflow-providers-opensearchpkg:pypi/apache-airflow-providers-opensearchOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade Apache Airflow Providers OpenSearch to version 1.9.1 or later where this issue is fixed. Additionally, configure backend credentials using a secret backend rather than embedding them in the host URL to reduce risk.
Description
Apache Airflow Providers OpenSearch versions prior to 1.9.1 log the full host URL including embedded credentials in task logs when configured with a host URL containing credentials. This allows any user with task-log read permission to access sensitive backend credentials. The vulnerability is classified as CWE-532 (Insertion of Sensitive Information into Log File). Users are advised to upgrade to version 1.9.1 or later and to configure backend credentials using a secret backend rather than embedding them in the host URL as a defense-in-depth measure.