What is CVE-2026-39310?

CVE-2026-39310 is a high-severity vulnerability in Triliumnext Trilium, classified under Improper Access Control. CVSS score: 8.6/10. Published 2026-05-20.

How severe is CVE-2026-39310?

High severity. CVSS v3 base score is 8.6 out of 10.

Auth bypass in Triliumnext Trilium

CVE-2026-39310

Trilium Notes is a cross-platform, hierarchical note taking application focused on building large personal knowledge bases. In versions 0.102.1 and prior, the Clipper API in Trilium Desktop (v0.101.3) allows full authentication bypass when…

EPSS: 0.001 (21.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.

Affected products

Triliumnext Trilium — versions < 0.102.2

Weakness classification (CWE)

CWE-284 — Improper Access Control
CWE-306 — Missing Authentication for Critical Function

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-39310?: CVE-2026-39310 is a high-severity vulnerability in Triliumnext Trilium, classified under Improper Access Control. CVSS score: 8.6/10. Published 2026-05-20.
How severe is CVE-2026-39310?: High severity. CVSS v3 base score is 8.6 out of 10.