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Red Hat Satellite EUVDEUVD-2026-41004

| CVE-2026-5138 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-07-01 redhat GHSA-47r2-h2mh-qqjp
4.3
CVSS 3.1 · Vendor: redhat
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Severity by source

Vendor (redhat) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
vuln.today AI
4.3 MEDIUM

Network-accessible API requires authenticated low-privileged user (PR:L); impact is confidentiality-only on infrastructure metadata with no integrity or availability effect.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
Jul 01, 2026 - 14:56 vuln.today

DescriptionCVE.org

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.

AnalysisAI

Cross-tenant information disclosure in Foreman (packaged as Red Hat Satellite 6) allows an authenticated user holding host-edit permissions to retrieve sensitive infrastructure metadata from organizations and locations they are not authorized to access. The root cause is the taxonomy_scope controller method accepting organization and location IDs from nested request parameters without validating them against the caller's authorized tenancy scope, implementing a textbook CWE-639 authorization bypass through user-controlled key. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Satellite with host-edit permissions
Delivery
Enumerate valid organization and location IDs via API or UI
Exploit
Craft HTTP request with foreign org/location IDs in nested parameters
Execution
Submit request to taxonomy_scope controller
Persist
Controller bypasses authorization check
Impact
Retrieve cross-tenant subnet topology, VLAN IDs, and DNS metadata

Vulnerability AssessmentAI

Exploitation Exploitation requires an active authenticated session with at minimum host-edit permissions assigned in Foreman/Red Hat Satellite 6. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N) accurately reflects a moderate information-disclosure-only vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated Satellite user in Organization A, assigned host-edit permissions for legitimate administrative duties, constructs an HTTP request to the Foreman taxonomy_scope endpoint with nested parameters containing the organization and location IDs of Organization B. The controller processes these user-supplied IDs without validating them against the caller's authorized taxonomy, scopes its infrastructure query to Organization B, and returns subnet topology, IP address ranges, gateway addresses, DNS server addresses, and VLAN IDs belonging to that separate tenant. …
Remediation Apply the vendor-supplied patch referenced in the Red Hat Security Advisory at https://access.redhat.com/security/cve/CVE-2026-5138; an exact fixed version number was not included in the provided data and should be confirmed directly from that advisory before patching. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-41004 vulnerability details – vuln.today

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