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CVE-2026-34538
Vulnerability in airflow (CVE-2026-34538)
Summary
vulnerability in airflow (CVE-2026-34538). Confidential information can be exposed externally. Mitigation: upgrade to `3.2.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-34538** has been found in airflow.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade airflow to **3.2.0** or later.
If unsure, ask your IT team or search "airflow CVE-2026-34538" on the vendor's site.
CVE-2026-34538 (airflow) — CWE-668 /
Attack vector: remote (network-reachable) / no user interaction
Patched: `3.2.0` — 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.
❓ What is the problem
**A vulnerability** (CWE-668) exists in airflow.
📍 Affected scope
airflow — .
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **3.2.0**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'airflow' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r '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 `airflow` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade airflow to 3.2.0ステージング環境で 3.2.0 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
Bitnami
airflow
[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.2.0"}]}]
PyPI
apache-airflow
[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.2.0"}]}]
pip
apache-airflow
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}]
References
- advisory http://www.openwall.com/lists/oss-security/2026/04/09/9
- advisory https://lists.apache.org/thread/9mq3msqhmgjwdzbr6bgthj4brb3oz9fl
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-34538
- advisory https://github.com/advisories/GHSA-r7vr-m4jw-r794
- package https://github.com/apache/airflow
- patch https://github.com/apache/airflow/pull/64415
- web https://github.com/apache/airflow/releases/tag/3.2.0
- web https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-21.yaml