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Vendor Workaround
To mitigate this issue, avoid processing untrusted archive filenames with `rpmuncompress` or any workflows that invoke `%{__rpmuncompress}`. Before any build or extraction steps, rename source and patch archives to remove any shell metacharacters from their filenames.
Tracking
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Wed, 02 Sep 2026 17:30:00 +0000
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| Metrics |
ssvc
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Wed, 02 Sep 2026 10:45:00 +0000
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| 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. | |
| Title | Rpm: command injection in rpmuncompress via unescaped filenames passed to popen() | |
| 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
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-02T16:24:26.541Z
Reserved: 2026-09-02T11:56:41.213Z
Link: CVE-2026-84838
Updated: 2026-09-02T16:07:53.861Z
Status : Received
Published: 2026-09-02T16:17:33.710
Modified: 2026-09-02T17:18:06.037
Link: CVE-2026-84838
No data.
OpenCVE Enrichment
No data.
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CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')