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CVE-2026-43940
high
CVSS 8.4
Path Traversal in electerm (CVE-2026-43940)
Summary
path traversal in electerm (CVE-2026-43940). Successful exploitation can lead to full system takeover. Exploitable via ``runWidget``. Mitigation: upgrade to `3.7.16` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-43940** has been found in electerm.
Attackers can target a specific entry point like ``runWidget`` over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.4/10.
What to do: upgrade electerm to **3.7.16** or later.
If unsure, ask your IT team or search "electerm CVE-2026-43940" on the vendor's site.
CVE-2026-43940 (electerm) — CWE-22 / CVSS v3 8.4
Attack vector: local / unauthenticated / no user interaction
Attack surface: `runWidget` / `bubblewrap`
Patched: `3.7.16` — 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
**Path traversal** (CWE-22) exists in electerm. Attackers reach the vulnerable code path via ``runWidget`` without authentication.
📍 Affected scope
electerm — . Attack surface: `runWidget` / `bubblewrap`.
🔥 Severity
Severity: High (CVSS 8.4/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **3.7.16**.
🛡️ 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 'electerm' .` 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 'electerm' . | 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 `electerm` 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 electerm to 3.7.16ステージング環境で 3.7.16 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
npm
electerm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.16"}]}]