---
cve: "CVE-2026-56261"
severity: "CRITICAL"
cvss: 9.2
epss: "0.5%"
vendor: "Crawl4AI"
kev: false
exploited: false
published: "2026-07-10 15:16:42"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-10T19:24:46+01:00"
---

# CVE-2026-56261

> 9.2 CRITICAL · 🧪 PoC

## Beschreibung

Crawl4AI before 0.8.7 contains a server-side request forgery (SSRF) vulnerability in the Docker API server's /crawl/job and /llm/job endpoints, which accept webhook URLs without destination validation. An attacker can supply webhook URLs pointing to private or internal IP ranges, Docker networks, or cloud metadata endpoints (e.g. 169.254.169.254), causing the server to make requests to internal services and potentially expose cloud metadata.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-07-14 21:34:10
- CNA-CVSS: **9.2** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-918** — Server-Side Request Forgery
  The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

## Angriffsmuster (CAPEC)

- [CAPEC-664 — Server Side Request Forgery](https://capec.mitre.org/data/definitions/664.html) _(Severity: High)_

## Patch verfügbar (OSV)

- 7b280d36b150b544bf0994285b4755dca18c2149 (Commit)

## Referenzen

- <https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg>
- <https://github.com/unclecode/crawl4ai>
- <https://www.vulncheck.com/advisories/crawl4ai-server-side-request-forgery-via-webhook-urls>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-56261/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_