{"id":"CVE-2026-104078","revision":"37957ded4ca542818879fe44fd807619","records":[{"revision":"37957ded4ca542818879fe44fd807619","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-104078","aliases":[],"title":"Obsidian Desktop < 1.14.0 RCE via MathJax Safe Filter Bypass","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.","state":0,"publishedAt":"2026-10-08T16:38:20.154+00:00","modifiedAt":"2026-10-12T20:38:39.389+00:00","affected":[{"ecosystem":"Vendor product","name":"Obsidian Desktop","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"vendor\": \"Obsidian\",\n                    \"product\": \"Obsidian Desktop\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"1.14.0\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.4,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104078","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-104078","identifiers":["CVE-2026-104078"]},"retained":false,"historicalAffected":[]}],"coverage":[]}