CVE-2026-52111CWE-284broken-access-control

CVE-2026-52111

Critical · published September 1, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
48.5
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00610 · 48.5th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-01T22:17Z
References (2)
https://gist.github.com/L4wCat/924c10c36d6d11651049787d547d411b · [email protected]https://github.com/haierkeys/fast-note-sync-service/issues/268 · [email protected]
EPSS history
Timeline
  • 03 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 01 SEP 00:00Z
    An issue in fast-note-sync-service <=2.13.7 allows a remote attacker to escalate privileges via the admin configuration endpoint exposes authTokenKey
    cvelistv5