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CVE-2026-104077— Obsidian Desktop < 1.14.0 RCE via Slides Plugin Markdown

Quick assessment

Affected
Obsidian Obsidian Desktop
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 Obsidian Desktop 1.14.0 之前的版本中，Slides 核心插件存在一个任意代码执行漏洞。攻击者可以构造一个恶意的 Markdown 笔记，其中包含一个能够绕过 DOMPurify 清理过滤的 属性。当受害者打开该笔记并将其作为演示文稿启动时，Reveal.js 会将攻击者控制的值提升为 iframe 的 属性，且未对 URL 协议进行限制，从而执行 协议的有效负载。由于该渲染器启用了 Node.js 集成且禁用了上下文隔离，该有效负载可通过 访问 Node.js API，最终实现以当前 O

CVSS 7.8 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
Obsidian Obsidian Desktop < 1.14.0 affected
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I. Basic Information for CVE-2026-104077

Vulnerability Information
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Vulnerability Title
Obsidian Desktop < 1.14.0 RCE via Slides Plugin Markdown
Source: CVE Program / CVE List V5
Vulnerability Description
Obsidian Desktop before 1.14.0 contains a remote code execution vulnerability that allows attackers to craft malicious Markdown notes exploiting insufficient sanitization of the data-background-iframe attribute, which bypasses DOMPurify and is processed by the bundled Reveal.js 4.3.1 within the Slides core plugin, allowing a javascript: URL to execute in the resulting background iframe. Because Node integration is enabled and context isolation is disabled in Obsidian's vault renderer, the injected script can call parent.require() to access Node APIs such as fs and child_process, enabling arbitrary operating system command execution when the victim opens the note and manually starts the presentation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Obsidian Obsidian Desktop 0 ~ 1.14.0 -

II. Public POCs for CVE-2026-104077

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III. Intelligence Information for CVE-2026-104077

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Other References for CVE-2026-104077 (1)

IV. Related Vulnerabilities

Same product: Obsidian Desktop
Same vendor: Obsidian
Same weakness: CWE-79

V. Comments for CVE-2026-104077

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