CVE-2026-5135 Foreman: foreman: unauthorized modification of host configurations via broken access control
Authenticated users can bypass authorization checks to modify host configurations across organizational boundaries by manipulating lookup value overrides.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-5135?
CVE-2026-5135 is a medium-severity missing authorization vulnerability in Redhat Satellite, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-5135?
It affects 2 products.
Products include Redhat Satellite, Theforeman Foreman.
How do I fix CVE-2026-5135?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5135 being exploited?
There is no known exploitation of CVE-2026-5135 in the wild and no public exploit code.
Other vulnerabilities in Redhat Satellite
- CVE-2024-7012 Puppet-foreman: an authentication bypass vulnerability exists in foreman
- CVE-2024-7923 Puppet-pulpcore: an authentication bypass vulnerability exists in pulpcore
- CVE-2026-96659 Foreman: excessive permissions for viewer role on preview
- CVE-2023-0118 Foreman: arbitrary code execution through templates
- CVE-2008-2369 Hardcoded credentials in n/a
Sources
Also known as GHSA-vpj3-792h-v855.