Red Hat Satellite 6.16 for RHEL 8: Incorrect Privilege Assignment
CVE-2026-5136 is a high-severity incorrect privilege assignment vulnerability in Red Hat Satellite 6.16 for RHEL 8 from Red Hat, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.56% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Satellite to 6.16.10 or 6.17.9 or 6.18.7 or 6.19.2, whichever matches your release line, or a later version.
- Update Foreman to 3.18.2 or 3.19.1, whichever matches your release line, or a later version.
- Read the advisory on access.redhat.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Red Hat | Red Hat Satellite 6.16 for RHEL 8 | Not specified in the record | Not stated |
| Red Hat | Red Hat Satellite 6.16 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat Satellite 6.17 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat Satellite 6.18 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat Satellite 6.19 for RHEL 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat Satellite 6 | Not specified in the record | Not stated |
| Red Hat | Satellite | 6.16 up to, but not including, 6.16.10; 6.17 up to, but not including, 6.17.9; 6.18 up to, but not including, 6.18.7; 6.19 up to, but not including, 6.19.2 | 6.16.10, 6.17.9, 6.18.7, 6.19.2 |
| Theforeman | Foreman | before 3.18.2; 3.19.0 up to, but not including, 3.19.1 | 3.18.2, 3.19.1 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (redhat.com).
Official description
A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Run your code using the lowest privileges that are required to accomplish the necessary tasks. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
More Incorrect Privilege Assignment vulnerabilities (CWE-266)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Red Hat Satellite 6.16 for RHEL 8
- 8.8 High severity
- 7.1 High severity
- 7.7 High severity
- 9.6 Critical severity
- 7.1 High severity
- 8.1 High severity
Recent Incorrect Privilege Assignment vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 7.3 High severity
- 7.3 High severity
- 7.1 High severity
- 7.8 High severity
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