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CVE-2026-56260— Crawl4AI - Arbitrary File Write via output_path Parameter

Quick assessment

Affected
Crawl4AI Crawl4AI
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UncleCode Crawl4AI是新加坡UncleCode个人开发者的一款AI驱动的爬虫软件。 UncleCode Crawl4AI 0.8.7之前版本存在路径遍历漏洞，该漏洞源于Docker API服务器中/screenshot和/pdf端点对output_path参数未进行验证即接受任意文件系统路径，允许攻击者提供绝对路径或路径遍历值写入应用程序用户可写的任何位置，覆盖服务器文件并导致拒绝服务。

CVSS 9.1 · Critical EPSS 0.65% · P50

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 2

VendorProduct Version RangeStatus
Crawl4AI Crawl4AI < 0.8.7 affected
0.8.7 unaffected
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I. Basic Information for CVE-2026-56260

Vulnerability Information
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Vulnerability Title
Crawl4AI - Arbitrary File Write via output_path Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
Crawl4AI before 0.8.7 contains an arbitrary file write vulnerability in the Docker API server's /screenshot and /pdf endpoints. The output_path parameter accepts arbitrary filesystem paths without validation, allowing an attacker to supply absolute or path-traversal values to write to any location writable by the application's user, overwriting server files and causing denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
UncleCode Crawl4AI 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UncleCode Crawl4AI是新加坡UncleCode个人开发者的一款AI驱动的爬虫软件。 UncleCode Crawl4AI 0.8.7之前版本存在路径遍历漏洞，该漏洞源于Docker API服务器中/screenshot和/pdf端点对output_path参数未进行验证即接受任意文件系统路径，允许攻击者提供绝对路径或路径遍历值写入应用程序用户可写的任何位置，覆盖服务器文件并导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Crawl4AI Crawl4AI 0 ~ 0.8.7 -

II. Public POCs for CVE-2026-56260

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7177 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-56260

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Vendor Advisories for CVE-2026-56260 (2)

Other References for CVE-2026-56260 (1)

IV. Related Vulnerabilities

Same product: Crawl4AI
Same vendor: Crawl4AI
Same weakness: CWE-22

V. Comments for CVE-2026-56260

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