CVE-2026-84233: Red Hat Enterprise Linux 10

High severity, CVSS 7.0. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in rpm. A local attacker could supply a specially crafted `.gem` filename containing RPM macro syntax. When a user or automated workflow invokes `rpmuncompress -x` on this file, the macro expansion occurs during command construction. This allows the attacker to execute arbitrary commands with the privileges of the invoking account, leading to a compromise of confidentiality, integrity, and availability.

Affected products

• Red Hat Red Hat Enterprise Linux 10
• Red Hat Red Hat Enterprise Linux 6
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 8
• Red Hat Red Hat Enterprise Linux 9
• Red Hat Red Hat Hardened Images: before 6.1.0-1.hum1 (fixed in 6.1.0-1.hum1)

Published 2026-09-01. Last modified 2026-10-02.