---
id: CVE-2026-112363
title: >-
  Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL
  Userinfo
summary: >-
  Crawl4AI from 0.8.7 through 0.9.5 contains a server-side request forgery
  vulnerability in the Docker API server that allows unauthenticated attackers
  to bypass destination checks via URL userinfo parsing differences. Attackers
  can set fe…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: unclecode
product: crawl4ai
affected:
  - crawl4ai >= 0.8.7 <= 0.9.5
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-19T15:59:21.230894Z'
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T16:33:37.088Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112363'
references:
  - url: 'https://github.com/unclecode/crawl4ai/pull/2304'
  - url: >-
      https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/ssl_certificate.py
  - url: >-
      https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/async_crawler_strategy.py
  - url: 'https://github.com/unclecode/crawl4ai/blob/v0.9.5/deploy/docker/utils.py'
  - url: >-
      https://www.vulncheck.com/advisories/crawl4ai-0.8.7-through-0.9.5-ssrf-bypass-via-sslcertificate-from-url-url-userinfo
    label: >-
      VulnCheck Advisory: Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via
      SSLCertificate.from_url URL Userinfo
tags:
  - cve.org
ingestedAt: '2026-10-19T16:32:30.081Z'
---

## Overview

Crawl4AI from 0.8.7 through 0.9.5 contains a server-side request forgery vulnerability in the Docker API server that allows unauthenticated attackers to bypass destination checks via URL userinfo parsing differences. Attackers can set fetch_ssl_certificate=true with crafted userinfo URLs so SSLCertificate.from_url connects to internal hosts on port 443, probing reachability and leaking certificate details.

## Affected

- `crawl4ai >= 0.8.7 <= 0.9.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.