🛡️ CVE-2026-5138 — foreman

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-639 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

CVE-2026-5138 is classified as CWE-639: Authorization Bypass Through User-Controlled Key. An object is selected by an identifier from the request without checking the caller owns it.

Affected software

CVE-2026-5138 is recorded against 2 packages.

  • foreman (from 3.19.0 up to 3.19.1)
  • satellite (from 6.19 up to 6.19.2)

Timeline and source

Published on 1 July 2026 and last revised on 9 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

access.redhat.com
access.redhat.com
access.redhat.com
access.redhat.com
access.redhat.com
bugzilla.redhat.com

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE CWE-639
Public Exploit ✅ No
Source NVD
Published 2026-07-01
Updated 2026-08-11
Modified 2026-07-09
Fix URL N/A

Affected Packages

Software From version Fixed in
foreman 3.19.0 3.19.1
satellite 6.19 6.19.2

Similar Threats

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