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CVE-2026-56258
high
CVSS 8.1
Path Traversal in crawl4ai (CVE-2026-56258)
Summary
path traversal in crawl4ai (CVE-2026-56258). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `0.8.8` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-56258** has been found in crawl4ai.
Successful exploitation can lead to full system takeover. CVSS score: 8.1/10.
What to do: upgrade crawl4ai to **0.8.8** or later.
If unsure, ask your IT team or search "crawl4ai CVE-2026-56258" on the vendor's site.
CVE-2026-56258 (crawl4ai) — CWE-22 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `0.8.8` — 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 crawl4ai.
📍 Affected scope
crawl4ai — .
🔥 Severity
Severity: High (CVSS 8.1/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **0.8.8**.
🛡️ 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 'crawl4ai' .` 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 'crawl4ai' . | 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 `crawl4ai` 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 crawl4ai to 0.8.8ステージング環境で 0.8.8 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
PyPI
crawl4ai
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.8"}]}]
References
- advisory https://github.com/unclecode/crawl4ai/security/advisories/GHSA-7cx2-g3h9-382p
- advisory https://www.vulncheck.com/advisories/crawl4ai-arbitrary-file-write-via-output-path-symlink-and-toctou
- web https://nvd.nist.gov/vuln/detail/CVE-2026-56258
- web https://github.com/advisories/GHSA-wx2c-3cp2-f6qw