{"id":"CVE-2026-12423","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-12423","generatedAt":"2026-10-28T01:51:05.610Z","title":"The Red Hat Satellite /unattended/provision API endpoint is vulnerable to an authentication bypass due to a semantic logic flaw in host_verifier.rb.","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.","published":"2026-10-01T17:17:20.000Z","lastModified":"2026-10-08T13:16:40.000Z","status":"Analyzed","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-306"],"affected":["redhat/satellite","theforeman/foreman"],"epss":{"score":0.00384,"percentile":0.32173,"date":"2026-10-26","history":[{"date":"2026-10-02","score":0.00353,"percentile":0.26654}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.38%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-01T17:17:20.000Z","detail":{"score":"7.5","severity":"HIGH","publishedAt":"2026-10-01T17:17:19.887Z"},"summary":"New CVE, high severity (CVSS 7.5)."}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:74503","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74504","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74505","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:74506","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-12423","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488956","tags":["Issue Tracking","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/07/10","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-12423","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}