CVE catalog
CVE-2026-41018
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 emb
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | apache-airflow-providers-elasticsearch | Not reported | 6.5.3 | fixed |
| Ubuntu | elasticsearch | 16.04 | 1.6.2+dfsg-1 | vulnerable |
| Ubuntu | elasticsearch | 16.04 | 1.7.3+dfsg-1 | vulnerable |
| Ubuntu | elasticsearch | 16.04 | 1.7.3+dfsg-2 | vulnerable |
| Ubuntu | elasticsearch | 16.04 | 1.7.3+dfsg-3 | vulnerable |
| Cpe | apache-airflow-providers-elasticsearch | Not reported | 6.5.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | apache-airflow-providers-elasticsearch | cpe | Not reported | 6.5.3 | Not reported | Not reported | Not reported |
| Cpe | apache-airflow-providers-elasticsearch | cpe | Not reported | 6.5.3 | Not reported | NVD-CVE-2026-41018 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/05/10/3]
- [https://github.com/apache/airflow/pull/65349]
- [https://lists.apache.org/thread/wz5l58drprmwlv6jxnq466x24jqbbhp7]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-41018]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-41018]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1452.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]