CVE-2026-127016

CRITICALCVSS 9.2/10

Last modified

CVE-2026-127016 is a critical-severity vulnerability rated 9.2/10 on the CVSS scale. The MISP Modules website component exposes external tool management endpoints (add, delete, change status, and change configuration) that did not enforce the optional administrator authentication policy. When ADMIN_PASSWORD was configured in the application environment, the module configuration endpoints correctly required an authenticated administrator session, but the external tools management handlers processed requests from anonymous users without any authorization check.

Description

The MISP Modules website component exposes external tool management endpoints (add, delete, change status, and change configuration) that did not enforce the optional administrator authentication policy. When ADMIN_PASSWORD was configured in the application environment, the module configuration endpoints correctly required an authenticated administrator session, but the external tools management handlers processed requests from anonymous users without any authorization check. An unauthenticated attacker with network access to the website could add arbitrary external tools, delete existing tools, toggle their active status, and modify their configurations including API keys and ingestion URLs. This inconsistency allowed bypass of the intended access control for the external tools management functionality. The vulnerability is conditional on ADMIN_PASSWORD being set; installations without an admin password intentionally permit open management access by design. The affected component is the external_tools Flask blueprint within the MISP Modules website application.

Metrics

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-127016?
The MISP Modules website component exposes external tool management endpoints (add, delete, change status, and change configuration) that did not enforce the optional administrator authentication policy. When ADMIN_PASSWORD was configured in the application environment, the module configuration endpoints correctly required an authenticated administrator session, but the external tools management handlers processed requests from anonymous users without any authorization check. An unauthenticated attacker with network access to the website could add arbitrary external tools, delete existing tools, toggle their active status, and modify their configurations including API keys and ingestion URLs. This inconsistency allowed bypass of the intended access control for the external tools management functionality. The vulnerability is conditional on ADMIN_PASSWORD being set; installations without an admin password intentionally permit open management access by design. The affected component is the external_tools Flask blueprint within the MISP Modules website application.
How severe is CVE-2026-127016?
CVE-2026-127016 has a CVSS score of 9.2/10 (CRITICAL severity).
How do I fix CVE-2026-127016?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST