CVE-2026-61474 MISP: Improper sharing group authorization check when adding attributes

An improper authorization check in MISP’s attribute creation endpoint allowed an authenticated user with permission to add attributes to submit a sharinggroupid without triggering the corresponding sharing group authorization check, as long as the attribute distribution value was not explicitly s...

CVE-2026-54398 MISP object edit authorization bypass allows unauthorized sharing group assignment

An authorization flaw in MISP’s object add/edit handling allowed an authenticated user with object editing permissions to assign a MISP object, or attributes contained within an object, to a sharing group that the user was not authorized to use or view. When editing objects, the sharing group...

CVE-2026-54398

CVE-2026-54398 describes an authorization flaw in MISP's object add/edit handling where an authenticated user with object editing permissions can assign objects or their attributes to a sharing group they are not authorized to view. The root cause is that during object edits the sharing group val...

CVE-2026-54398 MISP object edit authorization bypass allows unauthorized sharing group assignment

An authorization flaw in MISP’s object add/edit handling allowed an authenticated user with object editing permissions to assign a MISP object, or attributes contained within an object, to a sharing group that the user was not authorized to use or view. When editing objects, the sharing group...