8.8
HIGH
CVSS 3.1
CVE-2026-5136
Foreman: foreman: privilege escalation to administrator-level access via usergroup role assignment manipulation
Overview
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.
Details
INFO
Published Date :
July 1, 2026, 2:16 p.m.
Last Modified :
July 9, 2026, 2:39 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2026-5136
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
Update Foreman to patch the authorization validation flaw in user group role assignments.
- Apply the vendor-supplied update for Foreman.
- Review and restrict user group management permissions.
- Audit existing user group role assignments.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-5136.
| URL | Resource |
|---|---|
| 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-2026-5136 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2452970 | Issue Tracking Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-5136 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-5136
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-5136 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-5136 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 09, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* versions from (including) 6.16 up to (excluding) 6.16.10 OR cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* versions from (including) 6.17 up to (excluding) 6.17.9 OR cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* versions from (including) 6.18 up to (excluding) 6.18.7 OR cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.2 OR cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:* versions up to (excluding) 3.18.2 *cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:* versions from (including) 3.19.0 up to (excluding) 3.19.1 Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:34365 Types: Vendor Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:34366 Types: Vendor Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:34367 Types: Vendor Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/errata/RHSA-2026:34368 Types: Vendor Advisory Added Reference Type Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-5136 Types: Vendor Advisory Added Reference Type Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2452970 Types: Issue Tracking, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 02, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-5136', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-01T15:01:31.066159Z'} {'id': 'CVE-2026-5136', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-01T00:00:00+00:00'} -
CVE Modified by [email protected]
Jul. 02, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:34365 Added Reference https://access.redhat.com/errata/RHSA-2026:34366 Changed Affected [{'cpes': ['cpe:/a:redhat:satellite:6.16::el8', 'cpe:/a:redhat:satellite:6.16::el9', 'cpe:/a:redhat:satellite_capsule:6.16::el8', 'cpe:/a:redhat:satellite_capsule:6.16::el9', 'cpe:/a:redhat:satellite_maintenance:6.16::el8', 'cpe:/a:redhat:satellite_maintenance:6.16::el9', 'cpe:/a:redhat:satellite_utils:6.16::el8', 'cpe:/a:redhat:satellite_utils:6.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.16 for RHEL 8', 'versions': [{'status': 'unaffected', 'version': '0:3.12.0.17-1.el8sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.16::el8', 'cpe:/a:redhat:satellite:6.16::el9', 'cpe:/a:redhat:satellite_capsule:6.16::el8', 'cpe:/a:redhat:satellite_capsule:6.16::el9', 'cpe:/a:redhat:satellite_maintenance:6.16::el8', 'cpe:/a:redhat:satellite_maintenance:6.16::el9', 'cpe:/a:redhat:satellite_utils:6.16::el8', 'cpe:/a:redhat:satellite_utils:6.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.16 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.12.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.18::el9', 'cpe:/a:redhat:satellite_capsule:6.18::el9', 'cpe:/a:redhat:satellite_utils:6.18::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.18 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.16.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'satellite-capsule:el8/foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}] [{'cpes': ['cpe:/a:redhat:satellite:6.16::el8', 'cpe:/a:redhat:satellite:6.16::el9', 'cpe:/a:redhat:satellite_capsule:6.16::el8', 'cpe:/a:redhat:satellite_capsule:6.16::el9', 'cpe:/a:redhat:satellite_maintenance:6.16::el8', 'cpe:/a:redhat:satellite_maintenance:6.16::el9', 'cpe:/a:redhat:satellite_utils:6.16::el8', 'cpe:/a:redhat:satellite_utils:6.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.16 for RHEL 8', 'versions': [{'status': 'unaffected', 'version': '0:3.12.0.17-1.el8sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.16::el8', 'cpe:/a:redhat:satellite:6.16::el9', 'cpe:/a:redhat:satellite_capsule:6.16::el8', 'cpe:/a:redhat:satellite_capsule:6.16::el9', 'cpe:/a:redhat:satellite_maintenance:6.16::el8', 'cpe:/a:redhat:satellite_maintenance:6.16::el9', 'cpe:/a:redhat:satellite_utils:6.16::el8', 'cpe:/a:redhat:satellite_utils:6.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.16 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.12.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.17::el9', 'cpe:/a:redhat:satellite_capsule:6.17::el9', 'cpe:/a:redhat:satellite_maintenance:6.17::el9', 'cpe:/a:redhat:satellite_utils:6.17::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.17 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.14.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.18::el9', 'cpe:/a:redhat:satellite_capsule:6.18::el9', 'cpe:/a:redhat:satellite_utils:6.18::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.18 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.16.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.19::el9', 'cpe:/a:redhat:satellite_capsule:6.19::el9', 'cpe:/a:redhat:satellite_maintenance:6.19::el9', 'cpe:/a:redhat:satellite_utils:6.19::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.19 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.18.0.7-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'satellite-capsule:el8/foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}] -
CVE Modified by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2026:34367 Added Reference https://access.redhat.com/errata/RHSA-2026:34368 Changed Affected [{'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'satellite-capsule:el8/foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}] [{'cpes': ['cpe:/a:redhat:satellite:6.16::el8', 'cpe:/a:redhat:satellite:6.16::el9', 'cpe:/a:redhat:satellite_capsule:6.16::el8', 'cpe:/a:redhat:satellite_capsule:6.16::el9', 'cpe:/a:redhat:satellite_maintenance:6.16::el8', 'cpe:/a:redhat:satellite_maintenance:6.16::el9', 'cpe:/a:redhat:satellite_utils:6.16::el8', 'cpe:/a:redhat:satellite_utils:6.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.16 for RHEL 8', 'versions': [{'status': 'unaffected', 'version': '0:3.12.0.17-1.el8sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.16::el8', 'cpe:/a:redhat:satellite:6.16::el9', 'cpe:/a:redhat:satellite_capsule:6.16::el8', 'cpe:/a:redhat:satellite_capsule:6.16::el9', 'cpe:/a:redhat:satellite_maintenance:6.16::el8', 'cpe:/a:redhat:satellite_maintenance:6.16::el9', 'cpe:/a:redhat:satellite_utils:6.16::el8', 'cpe:/a:redhat:satellite_utils:6.16::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.16 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.12.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6.18::el9', 'cpe:/a:redhat:satellite_capsule:6.18::el9', 'cpe:/a:redhat:satellite_utils:6.18::el9'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6.18 for RHEL 9', 'versions': [{'status': 'unaffected', 'version': '0:3.16.0.17-1.el9sat', 'lessThan': '*', 'versionType': 'rpm'}], 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'satellite-capsule:el8/foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 01, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-5136', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-01T15:01:31.066159Z'} -
New CVE Received by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:satellite:6'], 'vendor': 'Red Hat', 'product': 'Red Hat Satellite 6', 'packageName': 'satellite-capsule:el8/foreman', 'collectionURL': 'https://access.redhat.com/downloads/content/package-browser/', 'defaultStatus': 'affected'}] Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-266 Added Reference https://access.redhat.com/security/cve/CVE-2026-5136 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2452970
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.