CVE-2025-68621

Description

Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. Prior to 0.101.0, a critical timing attack vulnerability in Trilium's sync authentication endpoint allows unauthenticated remote attackers to recover HMAC authentication hashes byte-by-byte through statistical timing analysis. This enables complete authentication bypass without password knowledge, granting full read/write access to victim's knowledge base. This vulnerability is fixed in 0.101.0.

Weakness classification

• security-advisories@github.com: CWE-208

Primary references

• security-advisories@github.com — Issue Tracking, Patch
• security-advisories@github.com — Exploit, Mitigation, Patch, Vendor Advisory