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CVE-2026-44847— MaxKB: Webhook Trigger Authentication Bypass

CVSS 7.5 · High EPSS 0.08% · P23

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
1Panel-devMaxKB< 2.9.0affected
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I. Basic Information for CVE-2026-44847

Vulnerability Information
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Vulnerability Title
MaxKB: Webhook Trigger Authentication Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
MaxKB is an open-source AI assistant for enterprise. Prior to 2.9.0, MaxKB's webhook trigger endpoint (/api/trigger/v1/webhook/{trigger_id}) is accessible without authentication. The WebhookAuth class unconditionally returns (None, {}), which Django REST Framework interprets as successful authentication. Combined with optional per-trigger token verification and no backend enforcement of token requirements, any unauthenticated attacker who knows a valid trigger ID can invoke webhook triggers to execute their bound tasks. This vulnerability is fixed in 2.9.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
MaxKB 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MaxKB是1Panel-dev开源的一款基于大语言模型和 RAG 的开源知识库问答系统。 MaxKB 2.9.0之前版本存在访问控制错误漏洞，该漏洞源于Webhook触发端点/api/trigger/v1/webhook/{trigger_id}无需身份验证即可访问，WebhookAuth类无条件返回(None, {})，导致任何知道有效触发ID的未认证攻击者均可调用Webhook触发器执行绑定任务。
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

VendorProductAffected VersionsCPESubscribe
1Panel-devMaxKB < 2.9.0 -

II. Public POCs for CVE-2026-44847

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 10224 chars
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III. Intelligence Information for CVE-2026-44847

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Vendor Advisories for CVE-2026-44847 (2)

Same Patch Batch · 1Panel-dev · 2026-05-26 · 6 CVEs total

CVE-2026-42337MaxKB: Broken Access Control in MaxKB OSS URL Fetch API
CVE-2026-42336MaxKB: SSRF Bypass via DNS Rebinding in MaxKB OSS URL Fetch
CVE-2026-42335MaxKB: SSRF Bypass in MaxKB OSS URL Fetch due to URL Parsing Discrepancy
CVE-2026-45412MaxKB: Unauthenticated SSRF via Workflow Template Import
CVE-2026-45413MaxKB: Unsalted MD5 Password Hashing

IV. Related Vulnerabilities

Same product: MaxKB
Same vendor: 1Panel-dev
Same weakness: CWE-287

V. Comments for CVE-2026-44847

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