CVE-2026-86417 — MISP Dashboard Template REST API Exposes Template Owner Email Addresses to Unauthorized Users

Description (CNA)

Affected versions of MISP inconsistently enforced email-address visibility in DashboardsController::listTemplates(). The query always fetched User.email, while redaction happened only inside the non-REST rendering branch. As a result, the same authenticated user who saw redacted data in the normal HTML interface could request the REST/JSON representation and receive template owners’ email addresses without the intended privilege check. The fix moves the decision to a centralized User::canSeeEmails() authorization helper. Email addresses are now fetched only when the requester is a site administrator or the instance explicitly enables Security.disclose_user_emails. The same helper is also reused by other dashboard widgets to keep email-disclosure policy consistent. Version affected: ≤2.5.45

Affected (CNA)

Vendor / product	Versions
MISP / MISP	affected 0 through 2.5.45

CWE

CWE-200, CWE-862

References

https://github.com/MISP/MISP/commit/fd554c3bd.patch

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.