Vulnerability in Red Hat Satellite 6.16 for RHEL 8

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund1 Oct 2026WID-SEC-2026-3712

  Foreman: Multiple vulnerabilities Translated from German

  CVE-2026-12540CVE-2026-12541CVE-2026-12542+4 more CVEs

[ References ]References

• access.redhat.com/errata/RHSA-2026:74503Vendor Advisory
• access.redhat.com/errata/RHSA-2026:74504Vendor Advisory
• access.redhat.com/errata/RHSA-2026:74505Vendor Advisory
• access.redhat.com/errata/RHSA-2026:74506Vendor Advisory
• access.redhat.com/security/cve/CVE-2026-12423Vendor Advisory
• bugzilla.redhat.com/show_bug.cgiIssue TrackingVendor Advisory
• www.openwall.com/lists/oss-security/2026/10/07/10Third Party Advisory