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TI-2025-42139 Aliases CVE-2025-68621

Trilium Notes has a Timing Attack Vulnerability in /api/login/sync

Priority LOW 35CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-208.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00565 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Trilium (TriliumNext): 0.101.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TriliumNextTriliumbefore 0.101.00.101.0Patch availableCNA
  • Trilium VendorTriliumNext Affected before 0.101.0 Fixed in 0.101.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:triliumnotes:trilium:*:*:*:*:*:*:*:*before 0.101.0VulnerableTriliumNext
  • cpe:2.3:a:triliumnotes:trilium:*:*:*:*:*:*:*:* Versions before 0.101.0 Vulnerable ·TriliumNext

Remediation

  • Fix · CNA Trilium (TriliumNext) Fixed in 0.101.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-68621

References

Exploit 1

Patch 1

  • TI-2026-36250 Trilium: Malicious import with GeoMap marker title XSS leads to RCE on the desktop client CVSS 4.0CRITICAL 9.3
  • TI-2026-38639 Trilium: Note Import to RCE via Mind Elixir dangerouslySetInnerHtml CVSS 4.0CRITICAL 9.3
  • TI-2026-54012 Trilium unauthenticated share-search discloses password-protected and hidden shared notes CVSS 3.1HIGH 7.5
  • TI-2026-35228 Code injection in TriliumNext Trilium CVSS 4.0HIGH 8.6
  • TI-2026-38641 Trilium arbitrary file read and denial of service via file:// URLs in the automatic image-download feature CVSS 3.1HIGH 8.1
  • TI-2026-38640 Trilium: Note Import to RCE via Book Note CVSS 4.0CRITICAL 9.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences