CVE-2025-10990: Red Hat Satellite 6.16 For Rhel 8

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw was found in REXML. A remote attacker could exploit inefficient regular expression (regex) parsing when processing hex numeric character references (&#x...;) in XML documents. This could lead to a Regular Expression Denial of Service (ReDoS), impacting the availability of the affected component. This issue is the result of an incomplete fix for CVE-2024-49761.

Affected products

• Red Hat Red Hat Satellite 6.16 For Rhel 8: before 0:8.8.1-3.el8sat (fixed in 0:8.8.1-3.el8sat)
• Red Hat Red Hat Satellite 6.16 For Rhel 9: before 0:8.8.1-3.el9sat (fixed in 0:8.8.1-3.el9sat)
• Red Hat Red Hat Satellite 6.17 For Rhel 9: before 0:8.8.1-3.el9sat (fixed in 0:8.8.1-3.el9sat)
• Red Hat Satellite Client 6 For Rhel 8: before 0:7.34.0-4.el8sat (fixed in 0:7.34.0-4.el8sat)
• Red Hat Satellite Client 6 For Rhel 9: before 0:7.34.0-4.el9sat (fixed in 0:7.34.0-4.el9sat)

Published 2026-02-27. Last modified 2026-06-26.