Privilege escalation in Theforeman Foreman
CVE-2026-5136
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Theforeman Foreman
- Red Hat Satellite 6
- Red Hat Satellite 6.16 For Rhel 8 — versions 0:3.12.0.17-1.el8sat
- Red Hat Satellite 6.16 For Rhel 9 — versions 0:3.12.0.17-1.el9sat
- Red Hat Satellite 6.17 For Rhel 9 — versions 0:3.14.0.17-1.el9sat
- Red Hat Satellite 6.18 For Rhel 9 — versions 0:3.16.0.17-1.el9sat
- Red Hat Satellite 6.19 For Rhel 9 — versions 0:3.18.0.7-1.el9sat
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Red Hat Satellite
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-5136 (vdb-entry, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking, Vendor Advisory)
- access.redhat.com/errata/RHSA-2026:34367 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2026:34368 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2026:34365 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2026:34366 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-5136?
- CVE-2026-5136 is a high-severity vulnerability in Theforeman Foreman, classified under Incorrect Privilege Assignment. CVSS score: 8.8/10. Published 2026-07-01.
- How severe is CVE-2026-5136?
- High severity. CVSS v3 base score is 8.8 out of 10.