CVE-2026-84233

Published: Sep 1, 2026Modified: Sep 4, 2026

7.0

Vector

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

Exploitability: 1.0 / Impact: 5.9

Source: secalert@redhat.com (Secondary)

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.

Related CWEs

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

References (2)

https://access.redhat.com/security/cve/CVE-2026-84233

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2478409

Source: secalert@redhat.com

Timeline

No history available yet.