CVE-2026-94394 MISP ObjectReferencesController: Granular Distribution and Sharing Group Restrictions Bypassed When Adding Object References

When a regular user adds a reference between objects or attributes, MISP checks whether the user can access the overall event, but it does not always check whether the individual pieces of data are also allowed for that user. Because of this, someone who can view an event could potentially access...

CVE-2026-94394 MISP ObjectReferencesController: Granular Distribution and Sharing Group Restrictions Bypassed When Adding Object References

When a regular user adds a reference between objects or attributes, MISP checks whether the user can access the overall event, but it does not always check whether the individual pieces of data are also allowed for that user. Because of this, someone who can view an event could potentially access...

CVE-2026-94394 MISP ObjectReferencesController: Granular Distribution and Sharing Group Restrictions Bypassed When Adding Object References

When a regular user adds a reference between objects or attributes, MISP checks whether the user can access the overall event, but it does not always check whether the individual pieces of data are also allowed for that user. Because of this, someone who can view an event could potentially access...

CVE-2026-94394

CVE-2026-94394 affects the MISP threat intelligence platform, specifically the ObjectReferencesController . When a regular user adds a reference between objects or attributes, MISP verifies access to the parent event but does not always enforce granular sharing group or distribution-level restric...

EUVD-2026-83912

When a regular user adds a reference between objects or attributes, MISP checks whether the user can access the overall event, but it does not always check whether the individual pieces of data are also allowed for that user. Because of this, someone who can view an event could potentially access...

CVE-2026-94381

MISP has a security issue that can let a user gain more access than their API key is supposed to allow. A read-only API key should only let someone view information. However, after logging in with such a key, a specific MISP function could accidentally restore the user’s normal account permission...

CVE-2026-94383

The MISP blocklist workflow module accepted a user-supplied blocklist filename parameter without validating the file extension. The only sanitization applied was basename to strip path components and a check for empty or dot values. A site administrator could specify a filename with an arbitrary...

CVE-2026-94379

The login function in MISP's UsersController.php contained insufficient HTTP method validation for several security-critical code paths. The original code used an allowlist approach, checking only for specific HTTP methods POST and PUT before enforcing bruteforce protection, email one-time-passwo...

CVE-2026-94374

MISP contains an insecure direct object reference vulnerability in the processModuleResultsData method of the Event model. When processing module results, the code iterates over EventReport entries supplied in the resolved data and saves each one. Unlike the adjacent attribute and object processi...

CVE-2026-94373

MISP contains a DOM-based cross-site scripting XSS vulnerability in the contextual menu JavaScript component. The ContextualMenu class populates HTML elements by assigning user-controllable values to the innerHTML property. Because innerHTML parses and renders HTML markup, any untrusted string...

CVE-2026-94372

MISP contains a stored cross-site scripting XSS vulnerability in the default theme's Galaxies index page. When a MISP instance detects unknown custom or default galaxy clusters during synchronization, it renders sample tag names in an informational notice directed at site administrators. In the...

CVE-2026-94393

MISP versions below 2.5.47 are affected by a cross-event authorization flaw in the editReport function. When creating or editing a report, MISP resolves an existing report by UUID without verifying that the report belongs to the same event. A user with editor access to at least one event can ther...

CVE-2026-94393 MISP Event Report Cross-Event Reparenting via Unscoped UUID Resolution in editReport

When a user creates or edits a report inside an event, MISP can identify an existing report using its UUID without properly checking whether that report actually belongs to the same event. As a result, a user who has editing rights on one event could potentially move a report from another event...

EUVD-2026-83911

When a user creates or edits a report inside an event, MISP can identify an existing report using its UUID without properly checking whether that report actually belongs to the same event. As a result, a user who has editing rights on one event could potentially move a report from another event...

CVE-2026-94393 MISP Event Report Cross-Event Reparenting via Unscoped UUID Resolution in editReport

When a user creates or edits a report inside an event, MISP can identify an existing report using its UUID without properly checking whether that report actually belongs to the same event. As a result, a user who has editing rights on one event could potentially move a report from another event...

CVE-2026-94393 MISP Event Report Cross-Event Reparenting via Unscoped UUID Resolution in editReport

When a user creates or edits a report inside an event, MISP can identify an existing report using its UUID without properly checking whether that report actually belongs to the same event. As a result, a user who has editing rights on one event could potentially move a report from another event...

EUVD-2026-83908

The MISP blocklist workflow module accepted a user-supplied blocklist filename parameter without validating the file extension. The only sanitization applied was basename to strip path components and a check for empty or dot values. A site administrator could specify a filename with an arbitrary...

CVE-2026-94383

MISP versions prior to 2.5.47 are affected by an arbitrary code execution vulnerability in the blocklist workflow module . The module accepted a user-supplied blocklist filename parameter without validating the file extension, applying only basename() to strip path components and a check for empt...

CVE-2026-94383 MISP Blocklist Workflow Module: Arbitrary Script Execution via Unrestricted File Extension

The MISP blocklist workflow module accepted a user-supplied blocklist filename parameter without validating the file extension. The only sanitization applied was basename to strip path components and a check for empty or dot values. A site administrator could specify a filename with an arbitrary...

CVE-2026-94383 MISP Blocklist Workflow Module: Arbitrary Script Execution via Unrestricted File Extension

The MISP blocklist workflow module accepted a user-supplied blocklist filename parameter without validating the file extension. The only sanitization applied was basename to strip path components and a check for empty or dot values. A site administrator could specify a filename with an arbitrary...