Is CVE-2026-84233 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-84233?

CVE-2026-84233 has a CVSS v3 severity of HIGH (7).

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CVE-2026-84233

Description

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.