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Vulnerability record · CVE-2026-5136 · published 1 July 2026

CVE-2026-5136: Redhat satellite vulnerability

Redhat · Satellite

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.

8.8 CVSS 3.1 High EPSS 0.56% · top 55.9% CWE-266 · CWE-266
8.8CVSS 3.1 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
9 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 TrackingVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-5136), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.