CVE-2026-33638
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Mar 26, 2026
Vendor
unknown
Description
Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, `GET /api/allusers` is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. A fix is available in v4.2.0.