CVE-2026-33638 (GCVE-0-2026-33638)

Vulnerability from cvelistv5 – Published: 2026-03-26 20:52 – Updated: 2026-03-27 20:19
VLAI
Title
Ech0 authenticated user-list exposed data via public `/api/allusers` endpoint
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 20:18 UTC
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7765 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
lin-snow Ech0 Affected: < 4.2.0
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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