Medium severity · published Jul 1, 2026
CVE-2026-5135
Foreman: foreman: unauthorized modification of host configurations via broken access control
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Satellite 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.16 for RHEL 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.16 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.17 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.18 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.19 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
FO
Foreman · Theforeman
before 3.18.2; 3.19.0 before 3.19.1 · source: NVD
SA
Satellite · Redhat
6.16 before 6.16.10; 6.17 before 6.17.9; 6.18 before 6.18.7; 6.19 before 6.19.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5135
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5135
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:34365
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:34366
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:34367
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:34368
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-5135
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2452230
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