Vulnerability in apache-airflow-providers-elasticsearch (CVE-2026-41018)
Summary
Vulnerability in apache-airflow-providers-elasticsearch (CVE-2026-41018). Confidential information can be exposed externally. Exploitable via host. Mitigation: upgrade to 6.5.3 or later.
Original description
The description as published by the source.
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.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-41018 has been found in apache-airflow-providers-elasticsearch.
Attackers can target a specific entry point like host over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: upgrade apache-airflow-providers-elasticsearch to 6.5.3 or later.
If unsure, ask your IT team or search "apache-airflow-providers-elasticsearch CVE-2026-41018" on the vendor's site.
CVE-2026-41018 (apache-airflow-providers-elasticsearch) — CWE-532 / CVSS v3 6.5
Attack vector: remote (network-reachable) / no user interaction
Attack surface: host
Patched: 6.5.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-532) exists in apache-airflow-providers-elasticsearch. Attackers reach the vulnerable code path via host.
Check the vendor advisory for the affected versions of apache-airflow-providers-elasticsearch. Attack surface: host.
Severity: Medium (CVSS 6.5/10). Confidential information can be exposed externally.
Update to 6.5.3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'apache-airflow-providers-elasticsearch' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'apache-airflow-providers-elasticsearch' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
apache-airflow-providers-elasticsearchを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade apache-airflow-providers-elasticsearch to 6.5.3ステージング環境で 6.5.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2026-41018 elasticsearch
References
- advisory nvd.nist.gov
- advisory lists.apache.org
- advisory github.com
- advisory github.com
- package github.com
- patch github.com
- web openwall.com
- web github.com
- web github.com
- web pypi.python.org