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TI-2026-69630 Aliases CVE-2026-104077GHSA-fj5r-pww3-qc5p

Remote code execution in Obsidian Desktop via crafted Markdown notes

Priority LOW 38CWE-1188Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Obsidian Desktop before 1.14.0 fails to sanitize the data-background-iframe attribute in the Slides core plugin, so a javascript: URL runs in a background iframe (CWE-79). An attacker who supplies a crafted Markdown note can run arbitrary operating system commands when a victim opens the note and manually starts the presentation, because Node integration is enabled and context isolation is disabled in the vault renderer. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00257 17th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Obsidian Desktop (Obsidian): 1.14.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ObsidianObsidian Desktopbefore 1.14.01.14.0Patch availableCNA
  • Obsidian Desktop VendorObsidian Affected before 1.14.0 Fixed in 1.14.0 Patch available CNA

Remediation

Upgrade Obsidian Desktop to 1.14.0, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Obsidian Desktop (Obsidian) Fixed in 1.14.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Obsidian Desktop 1.14.0

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-69631 Remote code execution in Obsidian Desktop via MathJax filter bypassPriority LOW 38
    Show all 2 records →

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-104077
  2. 2026-10-09 Alias added: GHSA-fj5r-pww3-qc5p
  3. 2026-10-12 1 new reference · CNA

References

Exploit 1

Patch 1

  • TI-2023-11881 An issue discovered in Obsidian Canvas 1.1.9 allows remote attackers to send desktop… CVSS 3.1HIGH 7.5
  • TI-2023-01985 Obsidian Local File Disclosure CVSS 3.1HIGH 8.2
  • TI-2022-16774 Obsidian 0.14.x and 0.15.x before 0.15.5 allows obsidian://hook-get-address remote code… CVSS 3.1CRITICAL 9.8
  • TI-2021-15828 Obsidian before 0.12.12 does not require user confirmation for non-http/https URLs. CVSS 3.1CRITICAL 9.8
  • TI-2023-16416 Obsidian before 1.2.2 allows calls to unintended APIs (for microphone access, camera… CVSS 3.1HIGH 8.2
  • TI-2026-69631 Remote code execution in Obsidian Desktop via MathJax filter bypass CVSS 4.0HIGH 8.4
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences