CVE-2026-12544
HIGH 7.7A flaw was found in Foreman. The foreman-rake initialization logic in /usr/share/foreman/config/settings.rb contains a vulnerable code pattern where configuration data is processed through two distinct executable layers. This creates a multi-stage execution chain that allows for both Server-Side Template Injection (SSTI) and insecure deserialization. This vulnerability can lead to remote code execution, total infrastructure compromise and supply chain risk.
Severe if exploited (CVSS 7.7), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 11th percentile
Impact if exploited
7.7CVSS 3.1 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ⚠Access: Requires local access to the host
- ⚠Privileges: Requires an admin / high-privilege account
- ⚠User interaction: A user must take an action (click / open a file)
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-12544/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-12544/poc.json
Affected
Vendors Red Hat Redhat Theforeman
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 Red Hat Satellite 6 Satellite Enterprise Linux Foreman
Weakness (CWE)
- CWE-502: Deserialization of Untrusted Data
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Redhat | Satellite | 6.0 |
| Redhat | Satellite | ≥ 6.16 and < 6.16.4 |
| Redhat | Satellite | ≥ 6.17 and < 6.17.12 |
| Redhat | Satellite | ≥ 6.19 and < 6.19.5 |
| Theforeman | Foreman | * |
| Redhat | Satellite | ≥ 6.18 and < 6.18.10 |
All CVSS metrics
- HIGH 7.7 v3.1 · CNA Primary
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - HIGH 7.7 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
References
Advisories
- https://access.redhat.com/errata/RHSA-2026:74503
- https://access.redhat.com/errata/RHSA-2026:74504
- https://access.redhat.com/errata/RHSA-2026:74505
- https://access.redhat.com/errata/RHSA-2026:74506
- https://access.redhat.com/security/cve/CVE-2026-12544
- https://bugzilla.redhat.com/show_bug.cgi?id=2489992
- http://www.openwall.com/lists/oss-security/2026/10/07/6