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CVE-2026-77516— MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path

一分钟漏洞结论

影响对象
1Panel-dev MaxKB
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through tool_ids, skill_tool_ids, or mcp_tool_ids and

CVSS 5.4 · Medium EPSS 0.20% · P10

影响版本矩阵 1

厂商产品 版本范围状态
1Panel-dev MaxKB >= 2.0.0, <= 2.9.2 affected
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一、 漏洞 CVE-2026-77516 基础信息

漏洞信息

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Vulnerability Title
MaxKB: Missing per-tool authorization in the agent and workflow tool-dispatch path
来源: CVE Program / CVE List V5
Vulnerability Description
MaxKB is an open-source AI assistant for enterprise. From version 2.0.0 through 2.9.2, a lowest-role workspace member denied access to a tool by WorkspaceUserResourcePermission can still bind its identifier through tool_ids, skill_tool_ids, or mcp_tool_ids and execute it through the agent or workflow dispatch path. The dispatch path does not reapply the per-tool grant enforced by dedicated tool routes, and tool execution decrypts server-side init_params, allowing the caller to receive credentials carried by the denied tool. No fixed version is available as of this review.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
1Panel-dev MaxKB >= 2.0.0, <= 2.9.2 -

二、漏洞 CVE-2026-77516 的公开POC

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三、漏洞 CVE-2026-77516 的情报信息

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CVE-2026-77516 其他参考 (1)

同批安全公告 · 1Panel-dev · 2026-09-21 · 共 13 条

CVE-2026-77521 10.0 CRITICAL MaxKB: Prompt-injectable agent can lead to command execution
CVE-2026-79916 9.1 CRITICAL MaxKB AWS Bedrock model credential injection leads to remote code execution
CVE-2026-77523 7.4 HIGH MaxKB: Cross-workspace model parameter form write
CVE-2026-79917 6.5 MEDIUM MaxKB: Chat share-link endpoint missing owner check: a chat token can publish another user
CVE-2026-79919 6.3 MEDIUM MaxKB function-library sandbox escape: dlopen stack-check bypass via importlib meta-path c
CVE-2026-79918 6.3 MEDIUM MaxKB: Sandbox escape via unhooked fexecve
CVE-2026-77520 5.4 MEDIUM MaxKB: Homepage ranking leaks application IDs that workflow application-nodes can use to i
CVE-2026-77517 5.4 MEDIUM MaxKB cross-knowledge IDOR lets a normal user read and modify documents and paragraphs in
CVE-2026-77519 5.4 MEDIUM MaxKB: Expired application API keys remain usable on `/chat/api/mcp`
CVE-2026-77518 5.0 MEDIUM MaxKB: Known MCP tool IDs expose owner Tool.code and can be referenced by attacker workflo
CVE-2026-77522 4.3 MEDIUM MaxKB: Authenticated full-read SSRF via the knowledge web-document import/sync crawler (Fo
CVE-2026-77525 4.2 MEDIUM MaxKB: Management chat-record routes trust path application_id but load ChatRecord by glob

IV. Related Vulnerabilities

Same product: MaxKB
Same vendor: 1Panel-dev
Same weakness: CWE-639

V. Comments for CVE-2026-77516

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