CVE-2025-53544: high-severity vulnerability in TriliumNext Trilium
Trilium Notes is Vulnerable to Brute-force Protection Bypass via Initial Sync Seed Retrieval
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. In versions below 0.97.0, a brute-force protection bypass in the initial sync seed retrieval endpoint allows unauthenticated attackers to guess the login password without triggering rate limiting. Trilium is a single-user app without a username requirement, and brute-force protection bypass makes exploitation much more feasible. Multiple features provided by Trilium (e.g. MFA, share notes, custom request handler) indicate that Trilium can be exposed to the internet. This is fixed in version 0.97.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
TriliumNext · TriliumRelated CVEs — TriliumNext Trilium
In the same product, most dangerous first.
CVE-2026-35593MEDIUMTrilium Notes has Local File Inclusion via upload modified file API endpointEPSS 0.6%CVE-2025-68621HIGHTrilium Notes has a Timing Attack Vulnerability in /api/login/syncEPSS 0.6%CVE-2026-53580HIGHTrilium arbitrary file read and denial of service via file:// URLs in the automatic image-download featureEPSS 0.5%CVE-2026-47727HIGHTrilium: RCE via `shareTemplate` relation missing `isDangerous` flag — Safe import bypass leading to EJS SSTI (Incomplete Fix of CVE-2026-45668)EPSS 0.5%CVE-2026-45733HIGHTrilium: Stored XSS in note icon rendering leads to Remote Code Execution in Electron desktop appEPSS 0.4%CVE-2026-77438HIGHTrilium unauthenticated share-search discloses password-protected and hidden shared notesEPSS 0.4%