VULNERABILITY INTELLIGENCE
CVE-2026-84838
CVSS score7.8 HIGH
EPSS probability1.10%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
A flaw was found in rpmuncompress. This command injection vulnerability allows a local attacker to execute arbitrary commands. This occurs when rpmuncompress processes a specially crafted archive filename containing shell metacharacters, which are not properly escaped before being passed to shell command strings. Successful exploitation requires user interaction, where a user or automated workflow invokes rpmuncompress on the malicious file, leading to high impact on the confidentiality, integrity, and availability of data accessible to the invoking user.
Weakness classification
- secalert@redhat.com: CWE-78