CVE-2026-111456
Candlepin: consumer certificate can register systems in another organization
- High 7.1
Description
A missing authorization check has been found in ConsumerResource.setupOwner() function of consumer registration module in the Candlepin package. The registration method checks permission to create a consumer only when the caller is a user. A consumer that authenticates with its identity certificate does not go through that check. A low-privileged network attacker or user who has a valid consumer certificate for one organization can register a new consumer in a different organization by supplying that organization's key. The response includes an identity certificate for the new consumer. With that certificate, the attacker can view the target organization's subscription pools. When the organization is not using simple content access, the attacker can attach that organization's entitlements to the new consumer.
Key facts
- Published
- 12 Nov 2026
- Last changed
- 13 Nov 2026
- Assigned by
- redhat
- EPSS
- 0.255% likely to be exploited in the next 30 days, higher than 17.193% of CVEs (scores for 15 Nov 2026)
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.1CVSS 3.1, Highfrom the CNA (redhat)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
What to do
- There is no configuration switch that stops a consumer certificate from calling registration while leaving normal consumer check-ins working. Restricting which clients can reach the Candlepin port limits who can attempt the call, and it does not stop a client that already has a valid consumer certificate and is allowed to use the API. Customers are advised to apply the relevant security updates when they become available.CNA workaround statement
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.
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.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Satellite 6.16 for RHEL 8 |
|
| Red Hat | Red Hat Satellite 6.16 for RHEL 9 |
|
| Red Hat | Red Hat Satellite 6.17 for RHEL 9 |
|
| Red Hat | Red Hat Satellite 6.18 for RHEL 9 |
|
| Red Hat | Red Hat Satellite 6.19 for RHEL 9 |
|
Timeline
- 16 Oct 2026 Reported to Red Hat.
- 27 Oct 2026 Made public.
- 12 Nov 2026 Published