Is there a public exploit for CVE-2026-12423?

No public exploit for CVE-2026-12423 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-12423?

CVE-2026-12423 scores CVSS 7.5 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.38%.

What does CVE-2026-12423 affect?

CVE-2026-12423 affects Red Hat Red Hat Satellite 6.17 for RHEL 9, Red Hat Satellite 6.16 for RHEL 8, Red Hat Satellite 6.18 for RHEL 9, Red Hat Satellite 6.19 for RHEL 9, Red Hat Satellite 6.16 for RHEL 9.

7.5 High

A flaw was found in Foreman.

CVE-2026-12423

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 hostverifier.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 validhosttoken? method evaluates to true, granting access to the kickstart template even if the requester provides no token at all in the URL.

Assessment

CVSS: 7.5 (v3.1)
Severity: High
EPSS: 0.38% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 1 October 2026
Last updated: 2 November 2026
Affected: Red Hat · Red Hat Satellite 6.16 for RHEL 8 · Red Hat Satellite 6.16 for RHEL 9 · Red Hat Satellite 6.17 for RHEL 9 · Red Hat Satellite 6.18 for RHEL 9
Assigner: redhat

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

At the source

EUVD (ENISA)

References

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