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.
History

Fri, 04 Sep 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 03 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat hardened Images
Vendors & Products Redhat hardened Images

Wed, 02 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 01 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
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.
Title Rpm: command execution via macro expansion in `rpmuncompress -x` for crafted `.gem` filenames
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Weaknesses CWE-78
CPEs cpe:/a:redhat:hummingbird:1
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-09-01T14:53:45.586Z

Updated: 2026-09-04T02:00:03.814Z

Reserved: 2026-09-01T12:20:02.226Z

Link: CVE-2026-84233

cve-icon Vulnrichment

Updated: 2026-09-04T01:59:58.534Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-01T15:17:43.853

Modified: 2026-09-04T02:17:19.897

Link: CVE-2026-84233

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-01T13:28:58Z

Links: CVE-2026-84233 - Bugzilla