What is CVE-2026-41018?

CVE-2026-41018 is a medium-severity vulnerability in Apache Apache-airflow-providers-elasticsearch, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.5/10. Published 2026-05-11.

How severe is CVE-2026-41018?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Information disclosure in Apache Apache-airflow-providers-elasticsearch

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 embedded credentials — into task logs. Any…

EPSS: 0.001 (16.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

security@apache.org (Patch, patch, Issue Tracking)
security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-41018?: CVE-2026-41018 is a medium-severity vulnerability in Apache Apache-airflow-providers-elasticsearch, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.5/10. Published 2026-05-11.
How severe is CVE-2026-41018?: Medium severity. CVSS v3 base score is 6.5 out of 10.