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CVE-2026-5135— Foreman: foreman: unauthorized modification of host configurations via broken access control

Quick assessment

Affected
Red Hat Red Hat Satellite 6.16 for RHEL 8
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Foreman是Foreman组织开源的一套用于物理和虚拟服务器中的生命周期管理工具。该工具提供服务开通、配置管理以及报告状态等功能。 Foreman存在授权问题漏洞，该漏洞源于访问控制缺陷，允许具有主机编辑权限的已验证用户通过嵌套主机属性修改匹配字段，将现有查找值覆盖重定向到不同主机，从而绕过授权检查，可能导致跨组织和位置边界对受管主机配置进行未授权修改。

CVSS 6.5 · Medium EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1548 · Abuse Elevation Control Mechanism

Affected Version Matrix 6

VendorProduct Version RangeStatus
Red Hat Red Hat Satellite 6 any affected
Red Hat Red Hat Satellite 6.16 for RHEL 8 0:3.12.0.17-1.el8sat< * unaffected
Red Hat Red Hat Satellite 6.16 for RHEL 9 0:3.12.0.17-1.el9sat< * unaffected
Red Hat Red Hat Satellite 6.17 for RHEL 9 0:3.14.0.17-1.el9sat< * unaffected
Red Hat Red Hat Satellite 6.18 for RHEL 9 0:3.16.0.17-1.el9sat< * unaffected
Red Hat Red Hat Satellite 6.19 for RHEL 9 0:3.18.0.7-1.el9sat< * unaffected
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I. Basic Information for CVE-2026-5135

Vulnerability Information
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Vulnerability Title
Foreman: foreman: unauthorized modification of host configurations via broken access control
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Foreman. This broken access control vulnerability allows an authenticated user with host-edit permissions to retarget an existing lookup value override to a different host. This is achieved by modifying the match field through nested host attributes, effectively bypassing authorisation checks. The consequence is the potential for unauthorised modification of managed host configurations across different organisational and location boundaries.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Foreman 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Foreman是Foreman组织开源的一套用于物理和虚拟服务器中的生命周期管理工具。该工具提供服务开通、配置管理以及报告状态等功能。 Foreman存在授权问题漏洞，该漏洞源于访问控制缺陷，允许具有主机编辑权限的已验证用户通过嵌套主机属性修改匹配字段，将现有查找值覆盖重定向到不同主机，从而绕过授权检查，可能导致跨组织和位置边界对受管主机配置进行未授权修改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Satellite 6.16 for RHEL 8 0:3.12.0.17-1.el8sat ~ * cpe:/a:redhat:satellite:6.16::el8
Red Hat Red Hat Satellite 6.16 for RHEL 9 0:3.12.0.17-1.el9sat ~ * cpe:/a:redhat:satellite:6.16::el8
Red Hat Red Hat Satellite 6.17 for RHEL 9 0:3.14.0.17-1.el9sat ~ * cpe:/a:redhat:satellite:6.17::el9
Red Hat Red Hat Satellite 6.18 for RHEL 9 0:3.16.0.17-1.el9sat ~ * cpe:/a:redhat:satellite:6.18::el9
Red Hat Red Hat Satellite 6.19 for RHEL 9 0:3.18.0.7-1.el9sat ~ * cpe:/a:redhat:satellite:6.19::el9
Red Hat Red Hat Satellite 6 - cpe:/a:redhat:satellite:6

II. Public POCs for CVE-2026-5135

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III. Intelligence Information for CVE-2026-5135

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Vendor Advisories for CVE-2026-5135 (6)

Same Patch Batch · Red Hat · 2026-07-01 · 7 CVEs total

CVE-2026-5136 8.8 HIGH Foreman: foreman: privilege escalation to administrator-level access via usergroup role as
CVE-2026-14258 6.5 MEDIUM Dhcpcd: dhcpcd infinite loop and out-of-bounds read via zero-length ipv6 nd option in rout
CVE-2026-5142 6.5 MEDIUM Foreman: foreman: cross-tenant private ssh key disclosure via taxonomy scoping bypass
CVE-2026-14324 6.5 MEDIUM Pipewire: raop rtsp null deref
CVE-2026-14330 5.5 MEDIUM Pipewire: pulse server alloca stack overflow
CVE-2026-5138 4.3 MEDIUM Foreman: foreman: information disclosure via improper validation of nested request paramet

IV. Related Vulnerabilities

Same product: Red Hat Satellite 6.16 for RHEL 8
Same vendor: Red Hat
Same weakness: CWE-639

V. Comments for CVE-2026-5135

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