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CVE-2026-55809
high
CVSS 8.1
Vulnerability in drupal/flag_attendance_field (CVE-2026-55809)
Summary
vulnerability in drupal/flag_attendance_field (CVE-2026-55809). Confidential information can be exposed externally. Exploitable via ``flag_attendance_field``. Mitigation: upgrade to `1.2.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-55809** has been found in drupal/flag_attendance_field.
Attackers can target a specific entry point like ``flag_attendance_field`` over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 8.1/10.
What to do: upgrade drupal/flag_attendance_field to **1.2.0** or later.
If unsure, ask your IT team or search "drupal/flag_attendance_field CVE-2026-55809" on the vendor's site.
CVE-2026-55809 (drupal/flag_attendance_field) — CWE-915 / CVSS v3 8.1
Attack vector: remote (network-reachable) / no user interaction
Attack surface: `flag_attendance_field`
Patched: `1.2.0` — 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-915) exists in drupal/flag_attendance_field. Attackers reach the vulnerable code path via ``flag_attendance_field`` without authentication.
📍 Affected scope
drupal/flag_attendance_field — . Attack surface: `flag_attendance_field`.
🔥 Severity
Severity: High (CVSS 8.1/10). Confidential information can be exposed externally
🔧 How to fix
Update to **1.2.0**.
🛡️ 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 'drupal/flag_attendance_field' .` 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 'drupal/flag_attendance_field' . | 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/flag_attendance_field` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade drupal/flag_attendance_field to 1.2.0ステージング環境で 1.2.0 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。
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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
Packagist:https://packages.drupal.org/8
drupal/flag_attendance_field
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0"}],"database_specific":{"constraint":"<1.2"}}]