CVE-2026-54362

Deferred Deferred - Pending Action

Incorrect Visibility Condition in MISP Event Template Builder Exposes Galaxies

Publication date: 2026-06-12

Last updated on: 2026-06-15

Assigner: 5a6e4751-2f3f-4070-9419-94fb35b644e8

Description

An incorrect visibility condition in the MISP event template builder allowed authenticated non-site-admin users to view galaxies that should not have been visible to their organisation. The custom access-control condition intended to restrict galaxies to those owned by the user’s organisation or distributed beyond it used a PHP comparison expression instead of a query condition. As a result, enabled galaxies, including organisation-only custom galaxies belonging to other organisations, could be exposed in the template builder galaxy list. This could disclose metadata about private galaxy definitions to unauthorised users.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-12

Last Modified

2026-06-15

Generated

2026-07-03

AI Q&A

2026-06-13

EPSS Evaluated

2026-07-01

NVD

CVE-2026-54362

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability is due to an incorrect visibility condition in the MISP event template builder. Authenticated users who are not site administrators could view galaxies that should have been restricted to their own organisation. The issue arose because the access-control condition used a PHP comparison expression instead of a proper query condition, which failed to properly restrict access. As a result, galaxies, including organisation-only custom galaxies from other organisations, could be exposed to unauthorized users, potentially disclosing metadata about private galaxy definitions.

Compliance Impact

This vulnerability allows authenticated non-site-admin users to view galaxies that should not have been visible to their organisation, potentially disclosing metadata about private galaxy definitions to unauthorized users.

Such unauthorized disclosure of metadata could lead to non-compliance with data protection regulations like GDPR or HIPAA, which require strict access controls and protection of sensitive information.

Impact Analysis

The impact of this vulnerability is the unauthorized disclosure of metadata related to private galaxy definitions within the MISP event template builder. Users who should not have access to certain galaxies from other organisations could view them, potentially exposing sensitive or confidential information that was intended to be restricted.

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