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CVE-2026-112363— Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo

Quick assessment

Affected
unclecode crawl4ai
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Crawl4AI 0.8.7 至 0.9.5 版本在 Docker API 服务器中存在服务器端请求伪造（SSRF）漏洞。该漏洞允许未认证的攻击者利用 URL 用户信息（userinfo）解析差异绕过目标检查。攻击者可通过构造包含特定用户信息的 URL 并设置 ，使 函数连接至内部主机的 443 端口，从而探测内部网络的可达性并泄露证书详情。

CVSS 5.3 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
unclecode crawl4ai 0.8.7≤ 0.9.5 affected
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I. Basic Information for CVE-2026-112363

Vulnerability Information
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Vulnerability Title
Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
unclecode crawl4ai 0.8.7 ~ 0.9.5 -

II. Public POCs for CVE-2026-112363

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III. Intelligence Information for CVE-2026-112363

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Other References for CVE-2026-112363 (3)

IV. Related Vulnerabilities

Same product: crawl4ai
Same vendor: unclecode
Same weakness: CWE-918

V. Comments for CVE-2026-112363

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