Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV L L N N P H H H 8.5 .0026 16.2 —
AFFECTED Product Versions Fixed Obsidian Desktop unspecified —
TIMELINE Oct 1 Reserved by VulnCheck Oct 8 Published (CNA: VulnCheck) Oct 12 EXPLOIT PUBLISHED — CVE-2026-104077 (Obsidian Desktop). Public exploit reference added.
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.
| Date | Event | Detail |
|---|---|---|
| October 1, 2026 | Reserved | Reserved by VulnCheck |
| October 8, 2026 | Published | Published (CNA: VulnCheck) |
| October 12, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-104077 (Obsidian Desktop). Public exploit reference added. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Obsidian | Obsidian Desktop | — | — | — |
Authoritative record: CVE-2026-104077 at cve.org
Vendors: obsidian
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-104077 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
