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CVE-2026-42448
low
CVSS 3.5
Path Traversal in magic-wormhole (CVE-2026-42448)
Summary
path traversal in magic-wormhole (CVE-2026-42448). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `0.24.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-42448** has been found in magic-wormhole.
Risk of unauthorized operations or information disclosure. CVSS score: 3.5/10.
What to do: upgrade magic-wormhole to **0.24.0** or later.
If unsure, ask your IT team or search "magic-wormhole CVE-2026-42448" on the vendor's site.
CVE-2026-42448 (magic-wormhole) — CWE-22 / CVSS v3 3.5
Attack vector: remote (network-reachable)
Patched: `0.24.0` — apply immediately
Workaround: Ensure local target directories specified by "--output" do not already exist
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 magic-wormhole.
📍 Affected scope
magic-wormhole — .
🔥 Severity
Severity: Low (CVSS 3.5/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **0.24.0**.
🛡️ Workaround
Workaround: Ensure local target directories specified by "--output" do not already exist
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'magic-wormhole' .` 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 'magic-wormhole' . | 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 `magic-wormhole` 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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5Apply temporary workaround mitigate
Ensure local target directories specified by "--output" do not already existパッチが適用されるまでの応急処置として、Ensure local target directories specified by "--output" do not already exist を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade magic-wormhole to 0.24.0ステージング環境で 0.24.0 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
pip
magic-wormhole
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.24.0"}]}]
PyPI
magic-wormhole
[{"type":"ECOSYSTEM","events":[{"introduced":"0.23.0"},{"fixed":"0.24.0"}]}]