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CVE-2026-86324

Foreman: authorization flaw in the foreman::controller::useraware handling used by api::v2::sshkeyscontroller

  • Medium 4.3

Description

A flaw was found in Foreman’s Api::V2::SshKeysController, where the target user is resolved through Foreman::Controller::UserAware#find_user using User.find(params[:user_id]) without enforcing the required parent-user authorization check. An attacker with the create_ssh_keys permission can exploit this authorization bypass by submitting POST /api/v2/users/:user_id/ssh_keys with another user’s ID and injecting their own public SSH key into the targeted account. The injected key is subsequently propagated to hosts provisioned by that user, potentially allowing the attacker to authenticate to and gain SSH access to the victim’s managed hosts.

Key facts

Published
12 Nov 2026
Last changed
13 Nov 2026
Assigned by
redhat
EPSS
0.313% likely to be exploited in the next 30 days, higher than 24.594% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: none; Automatable: no; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 4.3CVSS 3.1, Mediumfrom the CNA (redhat)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
Red HatRed Hat Satellite 6.16 for RHEL 8
  • Default status: affected
  • 0:3.12.0.26-1.el8sat up to but excluding * (unaffected)
Red HatRed Hat Satellite 6.16 for RHEL 9
  • Default status: affected
  • 0:3.12.0.26-1.el9sat up to but excluding * (unaffected)
Red HatRed Hat Satellite 6.17 for RHEL 9
  • Default status: affected
  • 0:3.14.0.26-1.el9sat up to but excluding * (unaffected)
Red HatRed Hat Satellite 6.18 for RHEL 9
  • Default status: affected
  • 0:3.16.0.29-1.el9sat up to but excluding * (unaffected)
Red HatRed Hat Satellite 6.19 for RHEL 9
  • Default status: affected
  • 0:3.18.0.19-1.el9sat up to but excluding * (unaffected)

Timeline

  1. 7 Sep 2026 Reported to Red Hat.
  2. 12 Nov 2026 Made public.
  3. 12 Nov 2026 Published

Weakness

References