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TI-2026-04483 Aliases CVE-2026-5136GHSA-fpxf-rppp-4373

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

Priority MEDIUM 41CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 5 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-266.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00555 46th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 5 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat Satellite 6.16 for RHEL 8—3.12.0.17-1.el8satPatch availableCNA
Red HatRed Hat Satellite 6.16 for RHEL 9—3.12.0.17-1.el9satPatch availableCNA
Red HatRed Hat Satellite 6.17 for RHEL 9—3.14.0.17-1.el9satPatch availableCNA
Red HatRed Hat Satellite 6.18 for RHEL 9—3.16.0.17-1.el9satPatch availableCNA
Red HatRed Hat Satellite 6.19 for RHEL 9—3.18.0.7-1.el9satPatch availableCNA
Red HatRed Hat Satellite 6——No fix listedCNA
  • Red Hat Satellite 6.16 for RHEL 8 VendorRed Hat Affected — Fixed in 3.12.0.17-1.el8sat Patch available CNA
  • Red Hat Satellite 6.16 for RHEL 9 VendorRed Hat Affected — Fixed in 3.12.0.17-1.el9sat Patch available CNA
  • Red Hat Satellite 6.17 for RHEL 9 VendorRed Hat Affected — Fixed in 3.14.0.17-1.el9sat Patch available CNA
  • Red Hat Satellite 6.18 for RHEL 9 VendorRed Hat Affected — Fixed in 3.16.0.17-1.el9sat Patch available CNA
  • Red Hat Satellite 6.19 for RHEL 9 VendorRed Hat Affected — Fixed in 3.18.0.7-1.el9sat Patch available CNA
  • Red Hat Satellite 6 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*6.16 to before 6.16.10VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0Running onRed Hat
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0Running onRed Hat
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*6.17 to before 6.17.9; 6.18 to before 6.18.7; 6.19 to before 6.19.2VulnerableRed Hat
cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:*before 3.18.2; 3.19.0 to before 3.19.1VulnerableThe Foreman Project
  • cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* Versions 6.16 to before 6.16.10 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Running on ·Red Hat
  • cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* Versions 6.17 to before 6.17.9; 6.18 to before 6.18.7; 6.19 to before 6.19.2 Vulnerable ·Red Hat
  • cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:* Versions before 3.18.2; 3.19.0 to before 3.19.1 Vulnerable ·The Foreman Project

Remediation

Red Hat 4 advisories

  • RHSA-2026:34367 Released 2026-07-01 · Red Hat rating Important
    Satellite 6.16.10 Async Update
    • Red Hat Satellite 6.16 for RHEL 8 foreman-3.12.0.17-1.el8sat, foreman-cli-3.12.0.17-1.el8sat, foreman-debug-3.12.0.17-1.el8sat +12
    • Red Hat Satellite 6.16 for RHEL 9 foreman-3.12.0.17-1.el9sat, foreman-cli-3.12.0.17-1.el9sat, foreman-debug-3.12.0.17-1.el9sat +12
  • RHSA-2026:34365 Released 2026-07-01 · Red Hat rating Important
    Satellite 6.19.2 Async Update
    • Red Hat Satellite 6.19 for RHEL 9 candlepin-4.7.5-1.el9sat, candlepin-selinux-4.7.5-1.el9sat, foreman-3.18.0.7-1.el9sat +17
  • RHSA-2026:34368 Released 2026-07-01 · Red Hat rating Important
    Satellite 6.18.7 Async Update
    • Red Hat Satellite 6.18 for RHEL 9 foreman-3.16.0.17-1.el9sat, foreman-cli-3.16.0.17-1.el9sat, foreman-debug-3.16.0.17-1.el9sat +13
Show 1 more Red Hat advisories
  • RHSA-2026:34366 Released 2026-07-01 · Red Hat rating Important
    Satellite 6.17.9 Async Update
    • Red Hat Satellite 6.17 for RHEL 9 dynflow-utils-1.6.3-1.1.el9sat, foreman-3.14.0.17-1.el9sat, foreman-cli-3.14.0.17-1.el9sat +16

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Red Hat Satellite 6, Red Hat Satellite 6.16 for RHEL 8 and 4 more products — RHSA-2026:34365

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-04489 Foreman: foreman: cross-tenant private ssh key disclosure via taxonomy scoping bypassPriority LOW 29
    • TI-2026-04482 Foreman: foreman: unauthorized modification of host configurations via broken access controlPriority LOW 29
    • TI-2026-04485 Foreman: foreman: information disclosure via improper validation of nested request parametersPriority LOW 20
    Show all 4 records → Advisory →
  • Advisory ·

    Red Hat Satellite 6, Red Hat Satellite 6.16 for RHEL 8 and 4 more products — RHSA-2026:34366

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-04489 Foreman: foreman: cross-tenant private ssh key disclosure via taxonomy scoping bypassPriority LOW 29
    • TI-2026-04482 Foreman: foreman: unauthorized modification of host configurations via broken access controlPriority LOW 29
    • TI-2026-04485 Foreman: foreman: information disclosure via improper validation of nested request parametersPriority LOW 20
    Show all 4 records → Advisory →
Show 2 more groups
  • Advisory ·

    Red Hat Satellite 6, Red Hat Satellite 6.16 for RHEL 8 and 4 more products — RHSA-2026:34367

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-04489 Foreman: foreman: cross-tenant private ssh key disclosure via taxonomy scoping bypassPriority LOW 29
    • TI-2026-04482 Foreman: foreman: unauthorized modification of host configurations via broken access controlPriority LOW 29
    • TI-2026-04485 Foreman: foreman: information disclosure via improper validation of nested request parametersPriority LOW 20
    Show all 4 records → Advisory →
  • Advisory ·

    Red Hat Satellite 6, Red Hat Satellite 6.16 for RHEL 8 and 4 more products — RHSA-2026:34368

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-04489 Foreman: foreman: cross-tenant private ssh key disclosure via taxonomy scoping bypassPriority LOW 29
    • TI-2026-04482 Foreman: foreman: unauthorized modification of host configurations via broken access controlPriority LOW 29
    • TI-2026-04485 Foreman: foreman: information disclosure via improper validation of nested request parametersPriority LOW 20
    Show all 4 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Satellite 6AffectedNo fix yet
Red Hat Satellite 6.16 for RHEL 8Fixed RHSA-2026:34367
Red Hat Satellite 6.16 for RHEL 9Fixed RHSA-2026:34367
Red Hat Satellite 6.17 for RHEL 9Fixed RHSA-2026:34366
Red Hat Satellite 6.18 for RHEL 9Fixed RHSA-2026:34368
Red Hat Satellite 6.19 for RHEL 9Fixed RHSA-2026:34365
Not affected: 5 products
  • Red Hat Satellite 6.16 for RHEL 8
  • Red Hat Satellite 6.16 for RHEL 9
  • Red Hat Satellite 6.17 for RHEL 9
  • Red Hat Satellite 6.18 for RHEL 9
  • Red Hat Satellite 6.19 for RHEL 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5136
  2. 2026-10-03 Alias added: GHSA-fpxf-rppp-4373

References

Advisory 6

  • TI-2016-02888 Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77… KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-02278 Unspecified vulnerability in Oracle Java SE 6u95, 7u80, and 8u45, and Java SE Embedded… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2026-35991 Starlette has missing Host header validation that poisons request.url.path, bypassing path-based security checks KEVCVSS 3.1MEDIUM 6.5
  • TI-2015-04118 Unspecified vulnerability in Oracle Java SE 6u101, 7u85, and 8u60 allows remote attackers… KEVCVSS 3.1MEDIUM 5.3
  • TI-2018-07743 It was found that cobbler 2.6.x exposed all functions from its CobblerXMLRPCInterface… CVSS 3.0CRITICAL 9.8
See all 242 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences