---
id: CVE-2026-95805
title: >-
  A typo in the MISP ACLComponent access control configuration caused the ACL
  rule for the previewEventAttributes action to reference the permission string
  'theming_enabled*' (with a trailing asterisk) instead of the correct
  'theming_enabl…
summary: >-
  A typo in the MISP ACLComponent access control configuration caused the ACL
  rule for the previewEventAttributes action to reference the permission string
  'theming_enabled*' (with a trailing asterisk) instead of the correct
  'theming_enabl…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-285
vendor: MISP
product: MISP
affected:
  - MISP < 2.5.47
published: '2026-09-22'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T16:18:24.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-95805'
references:
  - url: 'https://github.com/MISP/MISP/commit/5ac8d1e4d'
    label: 5a6e4751-2f3f-4070-9419-94fb35b644e8
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-22T15:53:31.726592Z'
cvssSource: cna
ingestedAt: '2026-09-22T16:06:00.471Z'
epss: 0.00413
epssPercentile: 0.3279
---

## Overview

A typo in the MISP ACLComponent access control configuration caused the ACL rule for the previewEventAttributes action to reference the permission string 'theming_enabled*' (with a trailing asterisk) instead of the correct 'theming_enabled'. In the MISP ACL system, the array values define which role or permission grants access to a given controller action. The adjacent entry previewEventObjects correctly uses ['theming_enabled'], confirming the intended restriction. The malformed key 'theming_enabled*' does not match any valid permission identifier, causing the access control check for previewEventAttributes to malfunction. Depending on the ACL evaluation logic, this could result in either unauthorized users gaining access to the previewEventAttributes endpoint (authorization bypass) or legitimate users being denied access (availability impact). 

The previewEventAttributes endpoint exposes event attribute data within MISP so an authorization bypass could expose sensitive indicator and attribute data to users who should not have access.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.