CVE-2026-104077

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://codeant.ai/security-research/from-markdown-to-a-shell-obsidian-desktop-rce
https://obsidian.md/changelog/2026-10-05-desktop-v1.14.4/
https://www.vulncheck.com/advisories/obsidian-desktop-rce-via-slides-plugin-markdown

Configurations

No configuration.

History

12 Oct 2026, 21:17

Type	Values Removed	Values Added
References		() https://codeant.ai/security-research/from-markdown-to-a-shell-obsidian-desktop-rce - () https://www.vulncheck.com/advisories/obsidian-desktop-rce-via-slides-plugin-markdown -

08 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 17:17

Updated : 2026-10-12 21:17

NVD link : CVE-2026-104077

Mitre link : CVE-2026-104077

CVE.ORG link : CVE-2026-104077

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-1188

Initialization of a Resource with an Insecure Default

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