CVE-2026-53579 Trilium: Note Import to RCE via Book Note
Attackers can achieve remote code execution on the victim's machine by importing a malicious note archive that bypasses sanitization in the desktop client.
- 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-2026-53579?
CVE-2026-53579 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 book note type, whose content is stored without sanitization and later rendered as HTML, allowing an attacker-supplied import archive to embed a payload that executes as script. A book note's content is routed through the same rendering path as text notes and injected into the page with jQuery's html method when the note is shown as a grid-view preview card, so a malicious note survives Safe import and runs as soon as the victim opens the containing note. 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-2026-53579?
It affects 1 product.
Products include Triliumnotes Trilium.
How do I fix CVE-2026-53579?
No fix has been published for CVE-2026-53579 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-2026-53579 being exploited?
There is no known exploitation of CVE-2026-53579 in the wild and no public exploit code.
Other vulnerabilities in TriliumNext Trilium
- CVE-2026-48996 Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client
- CVE-2026-53578 Trilium: Note Import to RCE via Mind Elixir dangerouslySetInnerHtml
- 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-h7w4-cjfg-cvj8.