CVE-2026-53578 Trilium: Note Import to RCE via Mind Elixir dangerouslySetInnerHtml
Attackers can achieve remote code execution on the victim's machine by importing a malicious mind map note that bypasses sanitization and executes JavaScript with Node integration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-53578?
CVE-2026-53578 is a critical code injection vulnerability in TriliumNext Trilium, published on 27 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Trilium is an open-source hierarchical note-taking application. In versions up to and including 0.103.0, the default-on "Safe import" filter sanitizes HTML only for text notes and excludes the mindMap note type, whose JSON content is stored without sanitization, allowing an attacker-supplied import archive to embed a payload that renders as arbitrary HTML. A mind map node can carry a dangerouslySetInnerHTML property that the Mind Elixir library assigns directly to a node's innerHTML, so a malicious note survives Safe import and executes script as soon as the victim opens the imported mind map. On the desktop client the Electron renderer runs with Node integration enabled, so the injected JavaScript escalates from cross-site scripting to full remote code execution on the victim's machine. This issue is fixed in version 0.104.0.
Which versions are affected by CVE-2026-53578?
It affects 1 product.
Products include Triliumnotes Trilium.
How do I fix CVE-2026-53578?
No fix has been published for CVE-2026-53578 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-53578 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53578 exists.
Other vulnerabilities in TriliumNext Trilium
- CVE-2026-48996 Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client
- CVE-2026-53579 Trilium: Note Import to RCE via Book Note
- CVE-2026-47727 Code injection in Trilium
- CVE-2026-53580 Trilium arbitrary file read and denial of service via file:// URLs in the automatic image-download feature
- CVE-2026-77438 Trilium unauthenticated share-search discloses password-protected and hidden shared notes
Sources
Also known as GHSA-rj57-j38v-3577.