CVE-2026-86417CWE-200CWE-862broken-access-controlinformation-disclosure

CVE-2026-86417

Medium · published September 7, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
18.3
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00270 · 18.3th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-862 · Missing Authorization
Published
2026-09-07T17:20Z
Affected products (1)
ProductVersionsFixed in
misp-project/misp≤ 2.5.45—
References (1)
https://github.com/MISP/MISP/commit/fd554c3bd.patch · 5a6e4751-2f3f-4070-9419-94fb35b644e8
EPSS history
Timeline
  • 09 SEP 03:20Z
    EPSS moved — → 0%
    epss
  • 07 SEP 12:17Z
    MISP Dashboard Template REST API Exposes Template Owner Email Addresses to Unauthorized Users
    cvelistv5