CVE-2026-52111

9.8 criticalEPSS 0.6%

Critical (9.8). EPSS 0.6% chance of exploitation in the next 30 days.

An issue in fast-note-sync-service <=2.13.7 allows a remote attacker to escalate privileges via the admin configuration endpoint exposes authTokenKey

Severity

9.8 critical

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWE: CWE-284
Published: 2026-09-01
Modified: 2026-09-08
Record from: the NVD, synced 2026-10-19