CVE-2026-120997— 会话失效不当致降权成员保留旧角色权限漏洞
一分钟漏洞结论
影响对象
nerves-hub nerves_hub_web
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。
在 nerves-hub 项目的 nerves_hub_web 模块中，仪表盘页面、设备控制台以及本地 Shell 通信通道存在会话失效不当（Improper Session Invalidation）漏洞。该漏洞允许被移除或降权的组织成员，通过其当时已打开的页面或会话，继续以原有角色执行操作。 具体而言，仪表盘页面在挂载时仅通过 NervesHubWeb.Auth 中的 assign_org_to_scope 钩子读取一次成员角色；而控制台、本地 Shell 及设备事件流通道则仅在加入时检查一次成员资格。因此，当
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一、 漏洞 CVE-2026-120997 基础信息
漏洞信息
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Vulnerability Title
Improper session invalidation keeps removed or demoted members' open pages and device consoles working at their old role
来源: CVE Program / CVE List V5
Vulnerability Description
Improper Session Invalidation vulnerability in the dashboard pages, device console and local shell channels in nerves-hub nerves_hub_web allows an organization member who is removed or given a lower role to keep acting at their old role through anything they had open at the time. The dashboard reads the member's role once when a page mounts, in the assign_org_to_scope hook of NervesHubWeb.Auth, and the console, local shell and device event stream channels check membership once at join. Removing a member or changing their role tells none of them, so open pages keep carrying out actions and open consoles keep running commands on the device until the page reloads or the socket disconnects.
The dashboard also opens consoles over NervesHubWeb.UserSocket with a token that holds only the user's id, is accepted for 24 hours, and is not revoked by signing out, which disconnects only the session's LiveViews. Whoever holds a token taken from a page can open consoles as that user, within the user's current membership, until it expires.
This issue affects nerves_hub: from 1.0.0 before 2.5.3.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
CWE-1464
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| nerves-hub | nerves_hub_web | 1.0.0 ~ 2.5.3 |
cpe:2.3:a:nerves-hub:nerves_hub_web:*:*:*:*:*:*:*:*
|
|
| nerves-hub | nerves_hub_web | 1.0.0 ~ 2.5.3 |
cpe:2.3:a:nerves-hub:nerves_hub_web:*:*:*:*:*:*:*:*
|
|
| nerves-hub | nerves_hub_web | b5d2438677f79d10e91aeef20a7b5cd8cca0d63c ~ a96497ddd4d24ab1847f7685e255bf96fd87b85b |
cpe:2.3:a:nerves-hub:nerves_hub_web:*:*:*:*:*:*:*:*
|
|
二、漏洞 CVE-2026-120997 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-120997 其他参考 (5)
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https://github.com/nerves-hub/nerves_hub_web/security/advisories/GHSA-c7jf-qcx9-xxf8 vendor-advisory related
同批安全公告 · nerves-hub · 2026-11-10 · 共 6 条
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| CVE-2026-120730 | 8.6 HIGH | 组织、产品及部署组 ID 强制赋值漏洞 |
| CVE-2026-120999 | 7.4 HIGH | Google 身份验证不当导致账户接管漏洞 |
| CVE-2026-120295 | 7.1 HIGH | 设备批量移动功能权限绕过漏洞 |
| CVE-2026-120286 | 5.3 MEDIUM | 设备部署组事件缺失授权，允许成员修改 |