CVE-2026-96658: Red Hat Satellite 6.16 For Rhel 8

Critical severity, CVSS 9.9. EPSS: 0.7% chance of exploitation in the next 30 days.

A flaw was found in Foreman. An authenticated attacker with low-level permissions can achieve remote code execution (RCE) by bypassing the safemode sandbox within the templating engine. Due to improper handling of delegated methods, an attacker can append unauthorized functions to the allowed execution list, enabling them to run arbitrary commands on the hosting server.

Affected products

• Red Hat Red Hat Satellite 6.16 For Rhel 8: before 0:1.5.0-2.el8sat (fixed in 0:1.5.0-2.el8sat)
• Red Hat Red Hat Satellite 6.16 For Rhel 9: before 0:1.5.0-2.el9sat (fixed in 0:1.5.0-2.el9sat)
• Red Hat Red Hat Satellite 6.17 For Rhel 9: before 0:3.14.0.22-1.el9sat (fixed in 0:3.14.0.22-1.el9sat); before 0:3.2.13-1.el9pc (fixed in 0:3.2.13-1.el9pc); before 0:3.1.62-1.el9pc (fixed in 0:3.1.62-1.el9pc); before 0:5.3.1-2.el9pc (fixed in 0:5.3.1-2.el9pc); before 0:0.6.0-1.el9pc (fixed in 0:0.6.0-1.el9pc); before 0:15.0.2-2.el9sat (fixed in 0:15.0.2-2.el9sat); …
• Red Hat Red Hat Satellite 6.18 For Rhel 9: before 0:1.5.0-2.el9sat (fixed in 0:1.5.0-2.el9sat)
• Red Hat Red Hat Satellite 6.19 For Rhel 9: before 0:3.18.0.14-1.el9sat (fixed in 0:3.18.0.14-1.el9sat)

Published 2026-10-01. Last modified 2026-10-07.