CVE-2026-12544: Foreman: ssti and insecure deserialization in foreman-rake configuration

Severity: high (CVSS 7.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-01 · updated 2026-10-08
Weakness: CWE-502

Description

A 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.

Affected products

Red Hat Satellite 6: from 6.16 before 6.16.4; from 6.17 before 6.17.12; from 6.19 before 6.19.5; from 6.18 before 6.18.10; 6.0 — fixed in 6.16.4, 6.17.12, 6.18.10, 6.19.5
foreman: all versions

How to fix

Upgrade to a fixed version: Red Hat Satellite 6 6.16.4, 6.17.12, 6.18.10, 6.19.5. Check the vendor advisory for mitigations.

References

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