---
id: CVE-2026-84837
title: A flaw was found in rpm
summary: >-
  A flaw was found in rpm. An attacker can exploit a command injection
  vulnerability by influencing the path or filename of a tarball processed by
  `rpmbuild -t*` to include shell metacharacters. This is particularly relevant
  in automated b…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
published: '2026-09-02'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T03:17:37.150'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84837'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:82378'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-84837'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2478408'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84837.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-84837'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84837'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00701
epssPercentile: 0.53012
ingestedAt: '2026-10-14T04:12:54.295Z'
vendor: Red Hat
product: Red Hat Hardened Images
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
  - hardened_images
patched:
  - hardened_images
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-02T15:46:29.235324Z'
---

## Overview

A flaw was found in rpm. An attacker can exploit a command injection vulnerability by influencing the path or filename of a tarball processed by `rpmbuild -t*` to include shell metacharacters. This is particularly relevant in automated build or continuous integration (CI) workflows that ingest externally supplied artifact names. Successful exploitation allows for arbitrary command execution with the privileges of the build user, which could lead to information disclosure or disruption of the build environment.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **RHSA-2026:82378** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-10-13 · [advisory](https://access.redhat.com/errata/RHSA-2026:82378)
- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-84837.json)