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Vulnerability record · CVE-2025-68621 · published 6 February 2026

CVE-2025-68621: Triliumnotes trilium vulnerability

Triliumnotes · 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. This vulnerability is fixed in 0.101.0.

7.4 CVSS 3.1 High EPSS 0.54% · top 56.8% CWE-208 · CWE-208
7.4CVSS 3.1 base score
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.1CVE-2022-2290Triliumnotes trilium cross-site scripting vulnerabilityCross-site Scripting (XSS) - Reflected in GitHub repository zadam/trilium prior to 0.52.4, 0.53.1-beta.EPSS 2.9%

Source: NIST National Vulnerability Database (record CVE-2025-68621), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.