GHSA-4pcg-gm3h-3m4rHighCVSS 7.8
Obsidian Desktop before 1.14.0 contains a filter bypass vulnerability in the bundled MathJax 3.2...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-104078
- 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
- https://github.com/advisories/GHSA-4pcg-gm3h-3m4r