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CVE-2026-53579— Trilium: Note Import to RCE via Book Note

Quick assessment

Affected
TriliumNext Trilium
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Trilium 是一款开源的层级化笔记应用程序。在 0.103.0 及更早版本中，默认开启的“安全导入”过滤机制仅对文本笔记进行 HTML 清理，而排除了“书籍”（book）类型的笔记。由于书籍笔记的内容在存储时未经过清理，随后会被作为 HTML 渲染，攻击者可以通过提供恶意导入存档，在其中嵌入一段能在脚本环境中执行的载荷。 当某本笔记以网格视图预览卡片形式展示时，其内容会与文本笔记走相同的渲染路径，并通过 jQuery 的 方法注入到页面中。因此，恶意笔记可以绕过“安全导入”机制，一旦受害者打开包含该笔记的页面，

CVSS 9.3 · Critical EPSS 0.21% · P12

Affected Version Matrix 1

VendorProduct Version RangeStatus
TriliumNext Trilium < 0.104.0 affected
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I. Basic Information for CVE-2026-53579

Vulnerability Information
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Vulnerability Title
Trilium: Note Import to RCE via Book Note
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TriliumNext Trilium < 0.104.0 -

II. Public POCs for CVE-2026-53579

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III. Intelligence Information for CVE-2026-53579

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Patches & Fixes for CVE-2026-53579 (1)

Vendor Advisories for CVE-2026-53579 (1)

Same Patch Batch · TriliumNext · 2026-08-27 · 6 CVEs total

CVE-2026-53578 9.3 CRITICAL Trilium: Note Import to RCE via Mind Elixir dangerouslySetInnerHtml
CVE-2026-48996 9.3 CRITICAL Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client
CVE-2026-47727 8.6 HIGH Trilium: RCE via `shareTemplate` relation missing `isDangerous` flag — Safe import bypass
CVE-2026-53580 8.1 HIGH Trilium arbitrary file read and denial of service via file:// URLs in the automatic image-
CVE-2026-77438 7.5 HIGH Trilium unauthenticated share-search discloses password-protected and hidden shared notes

IV. Related Vulnerabilities

Same product: Trilium
Same vendor: TriliumNext
Same weakness: CWE-79

V. Comments for CVE-2026-53579

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