CVE-2025-68621

HIGH EPSS 39.5%
Published Feb 6, 20264mo ago · Modified Jun 17, 20261w ago
7.4 CVSS 3.1
High
Find Similar
Published Feb 6, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.4
Exploitability
2.2
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
39.5% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-208

Affected Products 1

VendorProductVersionRange
triliumnotestrilium* <0.101.0

References 2

  • github.com https://github.com/TriliumNext/Trilium/pull/8129
    Issue TrackingPatch
  • github.com https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hxf6-58cx-qq3x
    ExploitMitigationPatchVendor Advisory

Remediation

  • github.com https://github.com/TriliumNext/Trilium/pull/8129
    Issue TrackingPatch
  • github.com https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hxf6-58cx-qq3x
    ExploitMitigationPatchVendor Advisory