CVE-2026-59148

Summary

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.

Affected Software

VendorProductVersion RangeStatus
mockoonmockoon< 9.7.0affected

Weaknesses

  • CWE-306: CWE-306: Missing Authentication for Critical Function
  • CWE-352: CWE-352: Cross-Site Request Forgery (CSRF)
  • CWE-732: CWE-732: Incorrect Permission Assignment for Critical Resource
  • CWE-942: CWE-942: Permissive Cross-domain Policy with Untrusted Domains

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: total

Additional References

References