CVE-2026-96658: Foreman: foreman: arbitrary code execution via safemode sandbox bypass

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-01 · updated 2026-10-18
Weakness: CWE-94

Description

A flaw was found in Foreman. This vulnerability allows an authenticated remote attacker with low-level read permissions to achieve arbitrary code execution on the underlying server. By manipulating the permitted methods list within the template rendering engine, an attacker can bypass the safemode sandbox isolation and execute unauthorized commands directly on the host system.

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 — fixed in 6.16.4, 6.17.12, 6.18.10, 6.19.5
foreman: before 2.0.1; 3.19.0, 3.19.1, 5.0.0 — fixed in 2.0.1

How to fix

Upgrade to a fixed version: Red Hat Satellite 6 6.16.4, 6.17.12, 6.18.10, 6.19.5; foreman 2.0.1. Check the vendor advisory for mitigations.

References

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