Description (CNA)
Obsidian Desktop before 1.14.0 contains a filter bypass vulnerability in the bundled MathJax 3.2.2 Safe component that allows attackers to execute arbitrary code by embedding a crafted \href value with a TAB byte in the URL scheme, causing filterURL to produce an empty protocol that bypasses the configured safeProtocols restrictions. Attackers can craft a note containing a malicious MathJax formula that renders as a javascript: URL anchor, which when clicked by the victim in Live Preview executes in the Node-integration-enabled vault renderer via require('child_process'), achieving arbitrary operating system command execution as the desktop user.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Obsidian / Obsidian Desktop | affected 0 before 1.14.0 |
CWE
CWE-79, CWE-1188
References
- https://obsidian.md/changelog/2026-10-05-desktop-v1.14.4/
- https://codeant.ai/security-research/from-markdown-to-a-shell-obsidian-desktop-rce
- https://www.vulncheck.com/advisories/obsidian-desktop-rce-via-mathjax-safe-filter-bypass
ADP enrichment
No English description supplied.
No references supplied.