GHSA-6M3J-QCJR-3VQM
Vulnerability from github – Published: 2026-10-01 18:32 – Updated: 2026-10-02 00:31A 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.
{
"affected": [],
"aliases": [
"CVE-2026-12423"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-01T17:17:19Z",
"severity": "HIGH"
},
"details": "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\u0027s 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.",
"id": "GHSA-6m3j-qcjr-3vqm",
"modified": "2026-10-02T00:31:29Z",
"published": "2026-10-01T18:32:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12423"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:74503"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:74504"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:74506"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-12423"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488956"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
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