Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-109237— Crawl4AI 0.9.0 before 0.9.4 Untrusted Config Gate Bypass Leaks Environment Variables

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.

在 Crawl4AI 0.9.0 至 0.9.4 版本中，存在一个不受信任配置的门限绕过漏洞，该漏洞允许非管理员 API 客户端通过将它们包装在 dict 类型包装器中，构造禁止的配置对象。攻击者可以通过 /config/dump 端点发送经过“清洗”的 LLMConfig，将 api_token 设置为环境变量引用，从而读取 SECRET_KEY 和提供者的密钥，实现管理员 JWT 的伪造。

CVSS 8.1 · High EPSS 0.32% · P24

Affected Version Matrix 2

VendorProduct Version RangeStatus
unclecode crawl4ai 0.9.0< 0.9.4 affected
0.9.4 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-109237

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Crawl4AI 0.9.0 before 0.9.4 Untrusted Config Gate Bypass Leaks Environment Variables
Source: CVE Program / CVE List V5
Vulnerability Description
Crawl4AI from 0.9.0 before 0.9.4 contains an untrusted-config gate bypass that allows non-admin API clients to construct forbidden config objects by wrapping them in dict-type wrappers. Attackers can send a laundered LLMConfig with api_token set to an env reference via /config/dump to read SECRET_KEY and provider keys, enabling admin JWT forgery.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
unclecode crawl4ai 0.9.0 ~ 0.9.4 -

II. Public POCs for CVE-2026-109237

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-109237

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-109237 (2)

Same Patch Batch · unclecode · 2026-10-12 · 3 CVEs total

CVE-2026-109238 8.6 HIGH Crawl4AI 0.7.0 before 0.9.4 SSRF via link_preview_config URL Seeder
CVE-2026-109239 5.3 MEDIUM Crawl4AI before 0.9.4 Blind SSRF via RobotsParser.can_fetch robots.txt Fetch

IV. Related Vulnerabilities

Same product: crawl4ai
Same vendor: unclecode
Same weakness: CWE-502

V. Comments for CVE-2026-109237

No comments yet

Leave a comment