High severity · published Oct 1, 2026
CVE-2026-12423
Foreman: unauthenticated information disclosure via provisioning token validation flaw
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Satellite 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.16 for RHEL 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.16 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.17 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.18 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Satellite 6.19 for RHEL 9 · Red Hat
All versions, or not specified · source: vendor
FO
Foreman · Theforeman
All versions, or not specified · source: NVD
SA
Satellite · Redhat
6.16 before 6.16.4; 6.17 before 6.17.12; 6.19 before 6.19.5; 6.18 before 6.18.10; 6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12423
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12423
vendor-advisory
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
vdb-entry
https://access.redhat.com/security/cve/CVE-2026-12423
issue-tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2488956
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