CVE-2026-59148
Mockoon: Unauthenticated admin API + wildcard CORS allows mock-state hijack and secret theft
Mockoon provides way to design and run mock APIs. Prior to 9.7.0, Mockoon's admin API in commons-server/src/libs/server/admin-api.ts is mounted on the same Express listener as user-defined mock routes, enabled by default in shipped runtimes, serves Access-Control-Allow-Origin: * with write methods allowed, and has no authentication. Any unauthenticated caller who can reach the mock server port can read MOCKOON_* environment variables, write arbitrary process environment variables through /mockoon-admin/env-vars, rewrite mock route bodies, statuses, and headers through PUT /mockoon-admin/environment, read transaction logs and SSE streams, and purge state. This issue is fixed in version 9.7.0.
| CWE | CWE-306 CWE-352 CWE-732 CWE-942 |
| Vendor | mockoon |
| Product | mockoon |
| Published | Jul 9, 2026 |
| Last Updated | Jul 9, 2026 |
Get instant alerts for mockoon mockoon
Be the first to know when new high vulnerabilities affecting mockoon mockoon are published — delivered to Slack, Telegram or Discord.
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H