Foreman: unauthenticated information disclosure via provisioning token validation flaw
Priority LOW 39CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 5 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-306.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00384 32nd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 5 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Satellite 6.16 for RHEL 8 | — | 3.12.0.23-1.el8sat | Patch available | CNA |
| Red Hat | Red Hat Satellite 6.16 for RHEL 9 | — | 3.12.0.23-1.el9sat | Patch available | CNA |
| Red Hat | Red Hat Satellite 6.17 for RHEL 9 | — | 3.14.0.22-1.el9sat | Patch available | CNA |
| Red Hat | Red Hat Satellite 6.18 for RHEL 9 | — | 3.16.0.25-1.el9sat | Patch available | CNA |
| Red Hat | Red Hat Satellite 6.19 for RHEL 9 | — | 3.18.0.14-1.el9sat | Patch available | CNA |
| Red Hat | Red Hat Satellite 6 | — | — | No fix listed | CNA |
- Red Hat Satellite 6.16 for RHEL 8 VendorRed Hat Affected — Fixed in 3.12.0.23-1.el8sat Patch available CNA
- Red Hat Satellite 6.16 for RHEL 9 VendorRed Hat Affected — Fixed in 3.12.0.23-1.el9sat Patch available CNA
- Red Hat Satellite 6.17 for RHEL 9 VendorRed Hat Affected — Fixed in 3.14.0.22-1.el9sat Patch available CNA
- Red Hat Satellite 6.18 for RHEL 9 VendorRed Hat Affected — Fixed in 3.16.0.25-1.el9sat Patch available CNA
- Red Hat Satellite 6.19 for RHEL 9 VendorRed Hat Affected — Fixed in 3.18.0.14-1.el9sat Patch available CNA
- Red Hat Satellite 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* | 6.16 to before 6.16.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* | 9.0 | Running on | Red Hat |
| cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* | 6.17 to before 6.17.12; 6.19 to before 6.19.5 | Vulnerable | Red Hat |
| cpe:2.3:a:theforeman:foreman:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | The Foreman Project |
| cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* | 6.18 to before 6.18.10 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* Versions 6.16 to before 6.16.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Running on ·Red Hat
- cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* Versions 6.17 to before 6.17.12; 6.19 to before 6.19.5 Vulnerable ·Red Hat
- cpe:2.3:a:theforeman:foreman:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·The Foreman Project
- cpe:2.3:a:redhat:satellite:*:*:*:*:*:*:*:* Versions 6.18 to before 6.18.10 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:satellite:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
Red Hat 4 advisories
- RHSA-2026:74506 Released 2026-10-01 · Red Hat rating CriticalSatellite 6.16.14 Async Update
- Red Hat Satellite 6.16 for RHEL 8 foreman-3.12.0.23-1.el8sat, foreman-cli-3.12.0.23-1.el8sat, foreman-debug-3.12.0.23-1.el8sat +32
- Red Hat Satellite 6.16 for RHEL 9 foreman-3.12.0.23-1.el9sat, foreman-cli-3.12.0.23-1.el9sat, foreman-debug-3.12.0.23-1.el9sat +32
- RHSA-2026:74505 Released 2026-10-01 · Red Hat rating CriticalSatellite 6.17.12 Async Update
- Red Hat Satellite 6.17 for RHEL 9 foreman-3.14.0.22-1.el9sat, foreman-cli-3.14.0.22-1.el9sat, foreman-debug-3.14.0.22-1.el9sat +31
- RHSA-2026:74504 Released 2026-10-01 · Red Hat rating CriticalSatellite 6.18.10 Async Update
- Red Hat Satellite 6.18 for RHEL 9 foreman-3.16.0.25-1.el9sat, foreman-cli-3.16.0.25-1.el9sat, foreman-debug-3.16.0.25-1.el9sat +26
Show 1 more Red Hat advisories
- RHSA-2026:74503 Released 2026-10-01 · Red Hat rating CriticalSatellite 6.19.5 Async Update
- Red Hat Satellite 6.19 for RHEL 9 foreman-3.18.0.14-1.el9sat, foreman-cli-3.18.0.14-1.el9sat, foreman-debug-3.18.0.14-1.el9sat +19
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Satellite 6 | Affected | No fix yet |
| Red Hat Satellite 6.16 for RHEL 8 | Fixed | RHSA-2026:74506 |
| Red Hat Satellite 6.16 for RHEL 9 | Fixed | RHSA-2026:74506 |
| Red Hat Satellite 6.17 for RHEL 9 | Fixed | RHSA-2026:74505 |
| Red Hat Satellite 6.18 for RHEL 9 | Fixed | RHSA-2026:74504 |
| Red Hat Satellite 6.19 for RHEL 9 | Fixed | RHSA-2026:74503 |
Not affected: 5 products
- 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
- Red Hat Satellite 6.19 for RHEL 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12423
- 2026-10-03 Alias added: GHSA-6m3j-qcjr-3vqm
References
More Red Hat Satellite vulnerabilities
- TI-2016-02888 Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77… KEVCVSS 3.1CRITICAL 9.8
- TI-2015-02278 Unspecified vulnerability in Oracle Java SE 6u95, 7u80, and 8u45, and Java SE Embedded… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2026-35991 Starlette has missing Host header validation that poisons request.url.path, bypassing path-based security checks KEVCVSS 3.1MEDIUM 6.5
- TI-2015-04118 Unspecified vulnerability in Oracle Java SE 6u101, 7u85, and 8u60 allows remote attackers… KEVCVSS 3.1MEDIUM 5.3
- TI-2018-07743 It was found that cobbler 2.6.x exposed all functions from its CobblerXMLRPCInterface… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2026-12423 · CVE Program
- CVE-2026-12423 · NVD
- FIRST EPSS
- GHSA-6m3j-qcjr-3vqm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-12423 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences