CVE-2026-5136

Foreman: foreman: privilege escalation to administrator-level access via usergroup role assignment manipulation

HIGH
8.8
CVSS Score
Published: July 1, 2026 at 01:28 PM UTC
Updated: July 9, 2026 at 02:55 AM UTC
3 products affected across 2 vendorsSatelliteForemanEnterprise Linux

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Severity
HIGH8.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.16 ≤ v < 6.16.106.17 ≤ v < 6.17.96.18 ≤ v < 6.18.76.19 ≤ v < 6.19.2
Vendor states this is fixed in 0:3.12.0.17-1.el8sat (unaffected)
Vendor states this is fixed in 0:3.12.0.17-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.14.0.17-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.16.0.17-1.el9sat (unaffected)
Vendor states this is fixed in 0:3.18.0.7-1.el9sat (unaffected)
Affected range stops below 6.16.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.17.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.18.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.19.2, so it looks safe — our inference, not a vendor statement
redhat-enterprise-linux (environment)
v < 3.18.23.19.0 ≤ v < 3.19.1
Affected range stops below 3.18.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.19.1, so it looks safe — our inference, not a vendor statement
All versions

References (6)

VDB Entryx_refsource_REDHATVendor Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-5136
Issue Trackingx_refsource_REDHATVendor Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2452970
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34367
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34368
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34365
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:34366

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-266

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