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 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-2026-54398

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-2026-54397 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...

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...

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...

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-2026-54360

CVE-2026-54360 affects MISP: the mass assignment in the sharing group creation flow (SharingGroupsController::add) allows an authenticated user to submit an existing group’s id, causing a create() followed by save() to update that group. This could enable takeover or alteration of sharing groups ...

PT-2026-48972

A mass assignment vulnerability exists in MISP’s sharing group creation endpoint. When creating a new sharing group, the controller did not remove a user-supplied id field before saving the submitted data. In CakePHP, supplying a primary key in the save data can cause a create followed by save...

PT-2026-48999

Name of the Vulnerable Software and Affected Versions MISP affected versions not specified Description An issue in the non-REST event editing path allows an authenticated user with event edit permissions to manipulate submitted form data. By tampering with the event edit request, a user can set t...

PT-2026-49007

Name of the Vulnerable Software and Affected Versions MISP affected versions not specified Description An authorization flaw exists in the object add/edit handling. An authenticated user with object editing permissions can assign a MISP object, or attributes within an object, to a sharing group...

EUVD-2021-18661

Malware in sbrugna...

CVE-2022-25318

An issue was discovered in Cerebrate through 1.4. An incorrect sharing group ACL allowed an unprivileged user to edit and modify sharing groups...

CVE-2022-25318

An issue was discovered in Cerebrate through 1.4. An incorrect sharing group ACL allowed an unprivileged user to edit and modify sharing groups...

PT-2022-17206 · Cerebrate · Cerebrate

Name of the Vulnerable Software and Affected Versions: Cerebrate versions through 1.4 Description: An issue was discovered that allowed an unprivileged user to edit and modify sharing groups due to an incorrect sharing group ACL. Recommendations: For versions through 1.4, as a temporary workaroun...

CVE-2021-31780

In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused...

CVE-2021-31780

In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused...

Information disclosure

In app/Model/MispObject.php in MISP 2.4.141, an incorrect sharing group association could lead to information disclosure on an event edit. When an object has a sharing group associated with an event edit, the sharing group object is ignored and instead the passed local ID is reused...