EUVD-2026-77344

Affected versions of MISP’s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies. The patch shows that CLI access could differ from the web application in multiple security-sensitive areas: - feed listings did...

CVE-2026-56423-MISP-deleteSelection-BrokenAccessControl

CVE-2026-56423 — MISP deleteSelection Broken Access Control Proof of concept for a missing-authorization flaw in MISP's bulk deletion flows for Event Reports and Sharing Groups. The deleteSelection handlers authorize each selected item with a callback that ignores the item and returns the caller'...

CVE-2026-56423

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

CVE-2026-56423 MISP Core: Broken access control allows instance-wide unauthorized deletion of event reports and sharing groups via bulk deletion endpoints

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

CVE-2026-56423

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

EUVD-2026-38226

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

CVE-2026-56423 MISP Core: Broken access control allows instance-wide unauthorized deletion of event reports and sharing groups via bulk deletion endpoints

MISP Core contained broken access-control checks in the bulk deletion flows for Event Reports and Sharing Groups. The affected deleteSelection handlers authorized deletion using broad role-level permissions instead of validating authorization for each selected object. For Event Reports,...

CVE-2026-56423

Summary: CVE-2026-56423 affects MISP Core where bulk deletion (Event Reports and Sharing Groups) used broad role permissions instead of per-object authorization checks, enabling instance-wide deletions by eligible users. What was vulnerable: EventReportsController::deleteSelection relied on the g...

PT-2026-51307

Name of the Vulnerable Software and Affected Versions MISP Core affected versions not specified Description Broken access-control checks exist in the bulk deletion flows for Event Reports and Sharing Groups. The deleteSelection handlers authorized deletions using broad role-level permissions...

EUVD-2026-36603

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

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...

CVE-2026-54360

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...

EUVD-2026-36552

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...

CVE-2026-54360 MISP sharing group creation mass assignment allows unauthorized takeover of existing sharing groups

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...

CVE-2026-54360 MISP sharing group creation mass assignment allows unauthorized takeover of existing sharing groups

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...

CVE-2026-54360 MISP sharing group creation mass assignment allows unauthorized takeover of existing sharing groups

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-2026-49007

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...

CVE-2021-27904

An issue was discovered in app/Model/SharingGroupServer.php in MISP 2.4.139. In the implementation of Sharing Groups, the "all org" flag sometimes provided view access to unintended actors...