Vulnerability in apache-airflow (CVE-2026-59244)
Summary
Vulnerability in apache-airflow (CVE-2026-59244). Confidential information can be exposed externally. Mitigation: upgrade to 3.3.1 or later.
Original description
The description as published by the source.
Apache Airflow's secrets masker did not mask var.json Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an isinstance(str) guard — so a secret stored as a JSON Variable and referenced in a template via var.json was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.
Source: NIST National Vulnerability Database 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-2026-59244 has been found in apache-airflow.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: upgrade apache-airflow to 3.3.1 or later.
If unsure, ask your IT team or search "apache-airflow CVE-2026-59244" on the vendor's site.
CVE-2026-59244 (apache-airflow) — CWE-312 / CVSS v3 6.5
Attack vector: remote (network-reachable) / no user interaction
Patched: 3.3.1 — 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-312) exists in apache-airflow.
Check the vendor advisory for the affected versions of apache-airflow.
Severity: Medium (CVSS 6.5/10). Confidential information can be exposed externally.
Update to 3.3.1.
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' . 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
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1Identify exposure identify
grep -r 'apache-airflow' . | 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 to 3.3.1ステージング環境で 3.3.1 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
References
- web github.com
- web lists.apache.org
- web nvd.nist.gov
- web openwall.com
- web github.com
- web github.com
- web github.com
- web github.com
- web github.com
- web github.com