CVE-2026-12544 Foreman - Server-Side Template Injection & Insecure Deserialization

Foreman contains a server-side template injection and insecure deserialization caused by multi-stage execution chain in foreman-rake initialization logic in /usr/share/foreman/config/settings.rb, letting remote attackers execute code and compromise infrastructure, exploit requires crafted input to configuration data.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Server-Side Template Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Published
1 October 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Update to the latest version of Foreman with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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