Medium severity6.5NVD Advisory· Published May 11, 2026· Updated May 13, 2026
CVE-2026-41018
CVE-2026-41018
Description
The Elasticsearch 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-elasticsearch 6.5.3 or later and, as a defense-in-depth measure, configure the backend credentials via a secret backend rather than embedding them in the [elasticsearch] host URL.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
apache-airflow-providers-elasticsearchPyPI | < 6.5.3 | 6.5.3 |
Affected products
5- cpe:2.3:a:apache:apache-airflow-providers-elasticsearch:*:*:*:*:*:*:*:*Range: <6.5.3
- osv-coords3 versions
< 3.2.1-r4+ 2 more
- (no CPE)range: < 3.2.1-r4
- (no CPE)range: < 3.2.1-r4
- (no CPE)range: < 6.5.3
Patches
Vulnerability mechanics
References
7- github.com/apache/airflow/pull/65349nvdIssue TrackingPatchWEB
- www.openwall.com/lists/oss-security/2026/05/10/3nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-g3jr-4jrm-jvqvghsaADVISORY
- lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7nvdMailing ListVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-41018ghsaADVISORY
- github.com/apache/airflow/commit/f9244064016a8db45277efb0c24808e663b233f3ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-elasticsearch/PYSEC-2026-22.yamlghsaWEB
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