EUVD-2026-84380

In MISP, the CollectionsController add method enforced the sharing-group usability authorization check and element capture only when the HTTP request method was POST. However, the underlying CRUDComponent::add method persists data on both POST and PUT requests. As a result, an authenticated user...

CVE-2026-95671

CVE-2026-95671 affects MISP (Malware Information Sharing Platform). The CollectionsController add() method only enforced the sharing-group authorization check for POST requests, while the underlying CRUDComponent::add() persists data on both POST and PUT requests. An authenticated user could ther...

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...

CVE-2026-91825

Affected versions of MISP fail to authorize a submitted sharing group in a specific event-edit path. The vulnerable logic checked whether the acting user could use a sharinggroupid only when the request explicitly supplied distribution = 4. If the attacker instead omitted distribution but supplie...

CVE-2026-91825 MISP: Missing Authorization Check for Event Sharing Group When Distribution Field Is Omitted During Edit

Affected versions of MISP fail to authorize a submitted sharing group in a specific event-edit path. The vulnerable logic checked whether the acting user could use a sharinggroupid only when the request explicitly supplied distribution = 4. If the attacker instead omitted distribution but supplie...

CVE-2026-91825 MISP: Missing Authorization Check for Event Sharing Group When Distribution Field Is Omitted During Edit

Affected versions of MISP fail to authorize a submitted sharing group in a specific event-edit path. The vulnerable logic checked whether the acting user could use a sharinggroupid only when the request explicitly supplied distribution = 4. If the attacker instead omitted distribution but supplie...

CVE-2026-91825

MISP versions ≤2.5.45 contain an authorization bypass in the event-edit path. When a request supplied a non-empty sharing_group_id but omitted the distribution field , the authorization check (which only fired for distribution = 4) was skipped. MISP's field-recovery logic then restored the existi...

PT-2026-91897

Affected versions of MISP fail to authorize a submitted sharing group in a specific event-edit path. The vulnerable logic checked whether the acting user could use a sharing group id only when the request explicitly supplied distribution = 4. If the attacker instead omitted distribution but...

CVE-2026-88915

Affected versions of MISP do not consistently enforce the acting user's authorization when instantiating event templates. For templates using distribution = 4, the template can specify a sharinggroupid. The instantiation path passed that value into event creation without verifying that the user...

CVE-2026-88915

MISP ≤2.5.45 is affected by an authorization bypass in the event template instantiation path. When a template uses distribution = 4 , the template's sharing_group_id was passed directly into event creation without verifying that the acting user is permitted to use that sharing group via SharingGr...

CVE-2026-88915 MISP Event Template Instantiation Bypasses Sharing Group and Tagging Authorization

Affected versions of MISP do not consistently enforce the acting user's authorization when instantiating event templates. For templates using distribution = 4, the template can specify a sharinggroupid. The instantiation path passed that value into event creation without verifying that the user...

EUVD-2026-75409

Affected versions of MISP do not consistently enforce the acting user's authorization when instantiating event templates. For templates using distribution = 4, the template can specify a sharinggroupid. The instantiation path passed that value into event creation without verifying that the user...

CVE-2026-88915 MISP Event Template Instantiation Bypasses Sharing Group and Tagging Authorization

Affected versions of MISP do not consistently enforce the acting user's authorization when instantiating event templates. For templates using distribution = 4, the template can specify a sharinggroupid. The instantiation path passed that value into event creation without verifying that the user...

CVE-2026-88915 MISP Event Template Instantiation Bypasses Sharing Group and Tagging Authorization

Affected versions of MISP do not consistently enforce the acting user's authorization when instantiating event templates. For templates using distribution = 4, the template can specify a sharinggroupid. The instantiation path passed that value into event creation without verifying that the user...

PT-2026-89408

Affected versions of MISP do not consistently enforce the acting user's authorization when instantiating event templates. For templates using distribution = 4, the template can specify a sharing group id. The instantiation path passed that value into event creation without verifying that the user...

CVE-2026-85546

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-2026-85546

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-2026-85546 MISP Sharing Group Quick-Edit Actions Allow CSRF via State-Changing GET Requests

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...