CVE-2026-5138CWE-639

Foreman: foreman: information disclosure via improper validation of nested request parameters

Medium · published July 1, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
30.8
In the wild
Unconfirmed
What it is

A flaw was found in Foreman. An authenticated user with host-edit permissions could exploit a cross-tenant information disclosure vulnerability. This flaw occurs because the taxonomy_scope controller method does not properly validate organization and location IDs from nested request parameters, bypassing existing authorization checks. This allows the user to leak sensitive infrastructure metadata, including subnet topology, IP ranges, gateways, DNS servers, and VLAN IDs, from organizations and locations they are not authorized to access.

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
Not supplied
EPSS
0.00380 · 30.8th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-07-01T14:08Z
EPSS history
Timeline
  • 01 JUL 14:08Z
    Foreman: foreman: information disclosure via improper validation of nested request parameters
    cvelistv5