---
id: CVE-2026-104077
title: >-
  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 …
summary: >-
  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 …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
  - CWE-1188
vendor: Obsidian
product: Obsidian Desktop
affected:
  - desktop < 1.14.0
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T18:17:13.140'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104077'
references:
  - url: 'https://obsidian.md/changelog/2026-10-05-desktop-v1.14.4/'
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-08T17:14:28.518422Z'
ingestedAt: '2026-10-08T16:52:14.787Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.