CVE-2026-85546

MISP is affected by a cross-site request forgery (CSRF) vulnerability in its sharing group quick-edit functionality. The root cause lies in the __initialiseSGQuickEdit() helper, where the allowMethod(['post']) call was commented out, allowing the addOrg, removeOrg, addServer, and removeServer act...

EUVD-2026-70981

MISP contains a cross-site request forgery CSRF vulnerability in the sharing group quick-edit functionality. The addOrg, removeOrg, addServer, and removeServer actions share the initialiseSGQuickEdit helper, where the HTTP method validation intended to restrict these operations to POST requests w...

CVE-2026-85533

CVE-2026-85533 is an authorization bypass in MISP (Malware Information Sharing Platform). In attribute attachment/editing and Galaxy Cluster creation/editing workflows, the Sharing Group authorization check was only executed when the distribution field was explicitly set to 4. By omitting or mani...

EUVD-2026-70976

An authorization flaw in MISP allowed an authenticated user to submit a sharinggroupid without verifying that the user was authorized to use the referenced Sharing Group. In several attribute and Galaxy Cluster creation and editing workflows, validation of the submitted Sharing Group was performe...

CVE-2026-61474

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-2026-61474

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...

EUVD-2026-42601

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-2026-61474 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-2026-61474

CVE-2026-61474 concerns MISP’s attribute creation endpoint. A faulty authorization check allowed an authenticated user with permission to add attributes to submit a non-empty sharing_group_id without triggering the sharing group authorization check, unless the distribution value was explicitly se...

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-2026-56422 MISP Core: Mass Assignment and Object Re-ownership via Unvalidated Request Fields

Multiple MISP core controllers and model capture paths accepted client-controlled request fields such as primary keys id and ownership/scope foreign keys eventid, orgid, userid, sharinggroupid, galaxyclusteruuid, organisationuuid, and related nested object identifiers without consistently...

CVE-2026-56422 MISP Core: Mass Assignment and Object Re-ownership via Unvalidated Request Fields

Multiple MISP core controllers and model capture paths accepted client-controlled request fields such as primary keys id and ownership/scope foreign keys eventid, orgid, userid, sharinggroupid, galaxyclusteruuid, organisationuuid, and related nested object identifiers without consistently...

CVE-2026-54397

A vulnerability in MISP’s non-REST event editing path allowed an authenticated user with event edit permissions to manipulate the submitted form data and set an event’s sharinggroupid to a sharing group they were not authorized to use. When distribution was set to sharing group distribution, the...

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...

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-2026-54397 MISP event editing allows unauthorized assignment to undisclosed sharing groups

A vulnerability in MISP’s non-REST event editing path allowed an authenticated user with event edit permissions to manipulate the submitted form data and set an event’s sharinggroupid to a sharing group they were not authorized to use. When distribution was set to sharing group distribution, the...

CVE-2026-54397 MISP event editing allows unauthorized assignment to undisclosed sharing groups

A vulnerability in MISP’s non-REST event editing path allowed an authenticated user with event edit permissions to manipulate the submitted form data and set an event’s sharinggroupid to a sharing group they were not authorized to use. When distribution was set to sharing group distribution, the...

CVE-2026-54397

MISP CVE-2026-54397 affects the non-REST event editing path. An authenticated user with event edit permissions could tamper with submitted form data to assign an event to a sharing_group_id the user is not authorized to use when distribution is set to sharing group distribution. The non-REST save...

EUVD-2026-36577

A vulnerability in MISP’s non-REST event editing path allowed an authenticated user with event edit permissions to manipulate the submitted form data and set an event’s sharinggroupid to a sharing group they were not authorized to use. When distribution was set to sharing group distribution, the...