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.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- 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 Tracking, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · redhat, theforemanNVD modified 2026-10-08 13:16
Affected (CPE criteria) 3
cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:*cpe:2.3:a:theforeman:foreman:-:*:*:*:*:*:*:*cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:*
References 7
- 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 Tracking, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/10/07/10 Third Party Advisory