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Vulnerability record · CVE-2026-12423 · published 1 October 2026

CVE-2026-12423: Redhat satellite missing authentication for critical function vulnerability

Redhat · Satellite

A flaw was found in Foreman. The Red Hat Satellite /unattended/provision API endpoint is vulnerable to an authentication bypass due to a semantic logic flaw in host_verifier.rb. The application verifies the database state of a provisioning token rather than its actual presence in the incoming HTTP request. Because a host actively undergoing provisioning has an unexpired token in the database, the server's valid_host_token? method evaluates to true, granting access to the kickstart template even if the requester provides no token at all in the URL.

7.5 CVSS 3.1 High EPSS 0.38% · top 67.1% CWE-306 · Missing authentication for critical function
7.5CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
7References
8 Oct 2026Last modified by NVD

Description

A flaw was found in Foreman. The Red Hat Satellite /unattended/provision API endpoint is vulnerable to an authentication bypass due to a semantic logic flaw in host_verifier.rb. The application verifies the database state of a provisioning token rather than its actual presence in the incoming HTTP request. Because a host actively undergoing provisioning has an unexpired token in the database, the server's valid_host_token? method evaluates to true, granting access to the kickstart template even if the requester provides no token at all in the URL.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:74503 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:74504 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:74505 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:74506 Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-12423 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2488956 Issue TrackingVendor Advisory
http://www.openwall.com/lists/oss-security/2026/10/07/10 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-12423), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.