CVE-2026-5135

Foreman: foreman: unauthorized modification of host configurations via broken access control

MEDIUM
6.5
CVSS Score
Published: July 1, 2026 at 02:08 PM UTC
Updated: July 9, 2026 at 02:55 AM UTC
3 products affected across 2 vendorsSatelliteForemanEnterprise Linux

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.16 ≤ v < 6.16.106.17 ≤ v < 6.17.96.18 ≤ v < 6.18.76.19 ≤ v < 6.19.2
Vendor states this is fixed in 0:3.12.0.17-1.el8sat (unaffected)
Vendor states this is fixed in 0:3.12.0.17-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.14.0.17-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.16.0.17-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.18.0.7-1.el9sat (unaffected)
Affected range stops below 6.16.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.17.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.18.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.19.2, so it looks safe — our inference, not a vendor statement
redhat-enterprise-linux (environment)
v < 3.18.23.19.0 ≤ v < 3.19.1
Affected range stops below 3.18.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.19.1, so it looks safe — our inference, not a vendor statement
All versions

References (6)

VDB Entryx_refsource_REDHATVendor Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-5135
Issue Trackingx_refsource_REDHATVendor Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2452230
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34367
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34368
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34365
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34366

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-639

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