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CVE-2026-66298— Livebook 输入验证错误漏洞

一分钟漏洞结论

影响对象
livebook-dev livebook
利用判断
存在公开或 AI PoC，应优先验证
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。

Livebook是Livebook组织开源的一款用于编写交互式协作代码笔记本的 Web 应用程序。 Livebook 0.5.0版本至0.18.7之前版本和0.19.0版本至0.19.9之前版本存在输入验证错误漏洞，该漏洞源于源验证错误，未检查Event.isTrusted导致不可信脚本生成的事件被当作真实按键，可能强制评估所有单元格或重启运行时。

CVSS 8.6 · High EPSS 0.17% · P7

影响版本矩阵 7

厂商产品 版本范围状态
livebook-dev livebook 0.5.0< 0.18.7 affected
0.19.0< 0.19.9 affected
0.5.0< 0.18.7 affected
0.19.0< 0.19.9 affected
0.5.0-cuda12< 0.18.7-cuda12 affected
0.19.0-cuda12< 0.19.9-cuda12 affected
844242ba80a928d0d675416d312a58003cb7771b< * affected
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一、 漏洞 CVE-2026-66298 基础信息

漏洞信息
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Vulnerability Title
JS-view sandboxed output can synthesize keyboard events to trigger unconfirmed global shortcuts
来源: CVE Program / CVE List V5
Vulnerability Description
Origin Validation Error vulnerability in livebook-dev livebook allows untrusted notebook output JavaScript to trigger session-wide keyboard shortcuts, including forced evaluation of all cells and runtime restart. Livebook's JS-view feature renders notebook-defined JavaScript inside a sandboxed, cross-origin iframe specifically because that JavaScript is untrusted. The trusted iframe shell in iframe/priv/static/iframe/v5.html forwards every keydown event fired in its own window to the parent page without consulting Event.isTrusted, so an event synthesized by the untrusted script through window.dispatchEvent is forwarded exactly as a genuine keystroke would be. The parent-side relay in assets/js/hooks/js_view.js reconstructs and re-dispatches it on the live page with no further validation, and because assets/js/hooks/session.js registers the global shortcut handler on the document in the capture phase, that handler acts on the replicated event regardless of how it was produced. Sandboxed output JavaScript can therefore drive Livebook's session-wide keyboard shortcuts. Two of them reach LivebookWeb.SessionLive and execute immediately with no confirmation: the shortcut for queueing full evaluation runs every cell in the notebook, and the shortcut for reconnecting the runtime disconnects and reconnects it, discarding in-memory state. A third shortcut deletes the focused cell behind a confirmation dialog that the user can permanently dismiss, after which it too executes silently. Forced full evaluation is the significant consequence, because it causes the notebook's own Elixir code to run without the user choosing to evaluate anything. A user who merely opens a notebook obtained from a third party, or reached from published documentation, can have its code executed on their runtime. Livebook also mirrors cell outputs to every connected client, so a malicious output triggers in a collaborator's browser as soon as it renders. This issue affects livebook: from 0.5.0 before 0.18.7 and from 0.19.0 before 0.19.9.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
源验证错误
来源: CVE Program / CVE List V5
Vulnerability Title
Livebook 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Livebook是Livebook组织开源的一款用于编写交互式协作代码笔记本的 Web 应用程序。 Livebook 0.5.0版本至0.18.7之前版本和0.19.0版本至0.19.9之前版本存在输入验证错误漏洞，该漏洞源于源验证错误，未检查Event.isTrusted导致不可信脚本生成的事件被当作真实按键，可能强制评估所有单元格或重启运行时。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
livebook-dev livebook 0.5.0 ~ 0.18.7 cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*
livebook-dev livebook 0.5.0 ~ 0.18.7 cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*
livebook-dev livebook 844242ba80a928d0d675416d312a58003cb7771b ~ * cpe:2.3:a:livebook-dev:livebook:*:*:*:*:*:*:*:*

二、漏洞 CVE-2026-66298 的公开POC

# POC 描述 源链接 神龙链接
AI 生成 POC 高级
Qwen3.6-35B-A3B · 4122 chars
Pro+ 专属包含：
漏洞复现靶场录像（真实沙箱构建 + 触发，独家）
漏洞原理深度分析
触发条件与影响面
完整可执行 POC 代码
利用链与缓解建议
POC 打包下载
每月 100+ 条 AI 生成额度

三、漏洞 CVE-2026-66298 的情报信息

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CVE-2026-66298 补丁与修复 (3)

CVE-2026-66298 厂商安全公告 (3)

同批安全公告 · livebook-dev · 2026-08-05 · 共 5 条

CVE-2026-68746 7.7 HIGH Livebook 异常处理不当漏洞
CVE-2026-66881 7.0 HIGH Livebook 路径遍历漏洞
CVE-2026-66885 6.8 MEDIUM Livebook 跨站请求伪造漏洞
CVE-2026-66297 5.0 MEDIUM Livebook 命令注入漏洞

IV. Related Vulnerabilities

Same product: livebook
Same vendor: livebook-dev
Same weakness: CWE-346

V. Comments for CVE-2026-66298

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