CVE-2026-84233 HIGH

CVE-2026-84233: Rpm: command execution via macro expansion in `rpmuncompress -x` for crafted `.gem` filenames

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-78
Published September 1, 2026
Last update September 2, 2026

CVSS base score

7.0/10
Attack vector Local
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 1, 2026 CVE published
September 2, 2026 Record updated

Related vulnerabilities

04Related CVE