CVE-2026-91851

Medium

Description

Affected versions of MISP incorrectly filter dashboard templates that are restricted to a specific permission flag. DashboardsController::listTemplates() allowed a template when either:  - its restrict_to_permission_flag matched one of the current user’s permission flags, or  - restrict_to_permission_flag equaled integer 0 However, restrict_to_permission_flag is a varchar. MySQL therefore performed numeric coercion when comparing the column against integer 0. Strings such as perm_site_admin convert numerically to zero, making expressions such as perm_site_admin = 0 evaluate true and causing the “unrestricted” branch to match permission-restricted templates as well. Version affected: ≤2.5.45

SeverityMedium
CVSS5.3
Exploit probability—
ProductMISP
PublishedSep 15, 2026
First seenSep 15, 2026

How to fix

Update
  • MISP MISP2.5.46 or later

Affected products

ProductAffected versionsFixed in
MISP MISPv < 2.5.462.5.46

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CVE-2026-91851 · MISP · Dark Radar