CVE-2026-86417

Summary

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 Software

Weaknesses

• CWE-200: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
• CWE-862: CWE-862 Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

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

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