CVE-2026-56446 Authenticated Remote Code Execution via Arbitrary NDJSON Error Log Path in MISP

MISP allowed a site administrator to configure an arbitrary filesystem path for the NDJSON error log used by JsonLogTool. Because log entries can include attacker-controlled content, an authenticated attacker with site administrator privileges could direct log output to a PHP file in a...

EUVD-2026-38229

MISP allowed a site administrator to configure an arbitrary filesystem path for the NDJSON error log used by JsonLogTool. Because log entries can include attacker-controlled content, an authenticated attacker with site administrator privileges could direct log output to a PHP file in a...

CVE-2026-56425 MISP AAD authentication plugin - Improper OAuth State Handling, Missing Session Rotation, Insecure Redirect URI Validation, and Log Injection

The Azure Active Directory AAD authentication implementation contained multiple weaknesses in its OAuth 2.0 authorization flow that could allow attackers to bypass important security guarantees provided by the protocol. The application used the PHP session identifier sessionid as the OAuth state...

CVE-2026-56424 Broken access control in MISP core allows cross-organization unauthorized modification or deletion of analyst data, event reports, collections, templates, and decaying models

MISP core contained multiple broken access-control flaws where authorization checks were performed against the wrong entity, or where ownership/editability checks were missing on write paths. In affected subsystems, a lower-privileged authenticated user with the relevant feature permission could...

CVE-2026-56424

CVE-2026-56424 affects MISP core and describes multiple broken access-control flaws where authorization checks target the wrong entity or where ownership checks are missing on write paths. In affected subsystems, a lower-privileged authenticated user with relevant feature permissions could cause ...

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,...

EUVD-2026-38225

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-2026-56422

CVE-2026-56422 affects MISP core controllers and models where client-controlled fields (ids and ownership/scope keys such as event_id, org_id, user_id, sharing_group_id, galaxy_cluster_uuid, organisation_uuid, etc.) were not consistently stripped or revalidated, enabling an authenticated user to ...

CVE-2023-38825

creationtimestamp| type| source ---|---|--- 2026-06-15 16:38:19+00:00| seen| MISP/a3f84b6e-ea8b-4ade-b4a9-8885f64587fd...

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-2026-54394

MISP contains a path traversal vulnerability in OrganisationsController::getOrgLogo. The vulnerable code builds organisation logo file paths using organisation-controlled fields such as id, name, and uuid without ensuring that the resolved file remains inside the intended APP/files/img/orgs/...

CVE-2026-54393

A stored cross-site scripting vulnerability exists in MISP when the Overmind theme is used. The setHomePage endpoint previously saved the user-controlled path value through setSettingInternal, bypassing the normal setSetting validation logic, including validatehomepage, which requires homepage...

CVE-2026-54395

MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a...

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-2026-54396 MISP AuthKey edit endpoint allows authenticated user email enumeration

An information disclosure vulnerability exists in the MISP AuthKey edit functionality. When a validation error occurs during an AuthKey edit request, the user dropdown was populated using the attacker-controlled AuthKey.userid value from the submitted request data. An authenticated user with...

CVE-2026-54396

CVE-2026-54396 describes an information disclosure in the MISP AuthKey edit functionality. When a validation error occurs, the user dropdown was populated from the attacker-controlled AuthKey.user_id in the submitted request, enabling an authenticated user with edit permission to enumerate user e...

CVE-2026-54396 MISP AuthKey edit endpoint allows authenticated user email enumeration

An information disclosure vulnerability exists in the MISP AuthKey edit functionality. When a validation error occurs during an AuthKey edit request, the user dropdown was populated using the attacker-controlled AuthKey.userid value from the submitted request data. An authenticated user with...

EUVD-2026-36564

MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a...

CVE-2026-54395 MISP UiBeta event index reflected XSS in advanced filter popup

MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a...