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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-79667

Ech0 before 4.4.3 Authentication Bypass via Scope Enforcement

Description

Ech0 version 4.3.4 and earlier fails to reliably enforce scoped access token (least-privilege) restrictions on several privileged admin routes. Multiple privileged endpoints (e.g., /api/inbox, /api/panel/comments, /api/backup/export) omit scope checks and authorize based only on the user's admin role, and the backup export handler discards token scope metadata entirely. An attacker holding a deliberately limited (low-scope) admin access token can reach broader privileged functionality than intended, including reading the inbox and exporting a full database backup ZIP archive. Fixed in 4.4.3.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

lin-snow Ech0

Default version status: unaffected

  • 0 to < 4.4.3affected
  • 4.4.3unaffected
pkg:golang/github.com/lin-snow/ech0

References