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CVE-2026-59148

HIGH Exploitation: PoC
8.8
CVSS 3.1
Description
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.

Metadata

CVE ID
CVE-2026-59148
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-07-02 16:50 UTC
Published
2026-07-09 18:27 UTC
Last updated
2026-07-09 19:24 UTC
Primary CWE
CWE-306
CWE-306: Missing Authentication for Critical Function
Vendor / Product
mockoon / mockoon
Sources
cve.org  ·  NVD

Severity & Metrics

8.8 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
mockoon mockoon — < 9.7.0
Weakness (CWE)
CWESourceDescription
CWE-306 cna CWE-306: Missing Authentication for Critical Function
CWE-352 cna CWE-352: Cross-Site Request Forgery (CSRF)
CWE-732 cna CWE-732: Incorrect Permission Assignment for Critical Resource
CWE-942 cna CWE-942: Permissive Cross-domain Policy with Untrusted Domains
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.8 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References (5)
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