Vulnerability · Published Oct 8, 2026 · Assigned by VulnCheck

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

High 7.8

In plain English

A high-severity cross-site scripting in Obsidian Desktop from Obsidian. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.3%top 82.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Obsidian	Obsidian Desktop	0 – before 1.14.0

Weakness: CWE-79, CWE-1188 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Product Changelog release-notes, patch
CodeAnt AI Blog technical-description, exploit
VulnCheck Advisory: Obsidian Desktop < 1.14.0 RCE via Slides Plugin Markdown third-party-advisory