Vulnerability in drupal/examples (CVE-2026-11909)
Summary
Vulnerability in drupal/examples (CVE-2026-11909). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 4.0.6 or later.
Original description
The description as published by the source.
The Examples for Developers project aims to provide high-quality, well-documented API examples for a broad range of Drupal core functionality.
The "Read from a file" feature implemented by the file_example submodule can be used to expose any file that PHP can access. Therefore, the file_example sub-module is being removed from Examples for Developers until a version demonstrating file security best practices can be added back in the future. Developers who based a new module on this example should review their code for an access bypass.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
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-2026-11909 has been found in drupal/examples.
Risk of unauthorized operations or information disclosure. CVSS score: 3.3/10.
What to do: upgrade drupal/examples to 4.0.6 or later.
If unsure, ask your IT team or search "drupal/examples CVE-2026-11909" on the vendor's site.
CVE-2026-11909 (drupal/examples) — CWE-862 / CVSS v3 3.3
Attack vector: remote (network-reachable) / no user interaction
Patched: 4.0.6 — 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-862) exists in drupal/examples.
Check the vendor advisory for the affected versions of drupal/examples.
Severity: Low (CVSS 3.3/10). Risk of unauthorized operations or information disclosure.
Update to 4.0.6.
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 'drupal/examples' . 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 'drupal/examples' . | 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
drupal/examples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 drupal/examples to 4.0.6ステージング環境で 4.0.6 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 drupal.org
- web nvd.nist.gov
- web github.com