Trilium
CVE-2025-68621
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V6 - Authentication Timing attack prevention
|
| Impact | CVSS 7.4 (HIGH). Attack vector: Network. Complexity: High. Privileges required: None. User interaction: None. Exploitation no authentication required. Exploitable via remote/network. Public exploit/POC available. |
| Exploit ScenarioDerived | A remote attacker without authentication could exploit this vulnerability to compromise the affected system. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. [CVSS 7.4 HIGH]
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 0.101.0.. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Affects Trilium. 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.
Know when Trilium gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
Executive ViewAI
CVE-2025-68621 affects Trilium Notes, an open-source note-taking application, with a HIGH severity rating (CVSS 7.4) and publicly available exploits. Organizations using Trilium Notes for sensitive knowledge management or business operations face immediate risk of compromise, particularly if deployed in collaborative or internet-accessible environments.
Apply vendor patch.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)GitHub Advisory
Cross-site Scripting (XSS) - Reflected in GitHub repository zadam/trilium prior to 0.52.4, 0.53.1-beta. Rated medium sev
Cross-site Scripting (XSS) - Stored in GitHub repository zadam/trilium prior to 0.59.4. Rated medium severity (CVSS 5.4)
Cross-site Scripting (XSS) - Stored in GitHub repository zadam/trilium prior to 0.53.3. Rated medium severity (CVSS 5.4)
Stored cross-site scripting escalating to remote code execution affects TriliumNext Trilium versions up to and including
Stored cross-site scripting escalating to remote code execution affects TriliumNext Trilium through version 0.103.0, whe
Stored cross-site scripting escalating to remote code execution affects TriliumNext Trilium through version 0.103.0, whe
Remote code execution in TriliumNext Trilium Notes desktop client prior to 0.102.2 allows attackers to achieve arbitrary
Remote code execution in Trilium versions prior to 0.104.0 is achievable by exploiting a bypass in the application's Saf
Authentication bypass in Trilium Notes Desktop (Electron build) versions 0.102.1 and earlier allows remote unauthenticat
Arbitrary local file disclosure and denial-of-service exist in Trilium's automatic image-download feature, affecting all
Unauthenticated content exfiltration in Trilium up to 0.103.0 is possible through the public share-search endpoint, whic
Stored XSS-to-RCE chain in Trilium Notes versions 0.102.1 and prior allows a network attacker to execute arbitrary Node.
Exploit-DB