---
id: CVE-2026-54231
title: >-
  A content injection vulnerability was found in the ABRT post-create event
  handler scripts in libreport
summary: >-
  A content injection vulnerability was found in the ABRT post-create event
  handler scripts in libreport. The event script queries the systemd journal for
  log entries matching the crashed process and writes the results to files in
  the dump…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-74
vendor: redhat
product: automatic_bug_reporting_tool
affected:
  - automatic_bug_reporting_tool
  - fedora = 43
  - fedora = 44
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
published: '2026-06-13'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T06:17:01.593'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54231'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:54272'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:69115'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:69116'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:69117'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-54231'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2488571'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54231.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-54231'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54231'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-15T21:42:52.155696Z'
epss: 0.00185
epssPercentile: 0.0827
ingestedAt: '2026-06-29T15:48:27.676Z'
patched:
  - enterprise_linux_appstream_v_8
  - enterprise_linux_appstream_aus_v_8_4
  - enterprise_linux_appstream_eus_extension_v_8_4
  - enterprise_linux_appstream_aus_v_8_6
  - enterprise_linux_appstream_eus_extension_v_8_6
  - enterprise_linux_appstream_e4s_v_8_8
  - enterprise_linux_appstream_tus_v_8_8
---

## Overview

A content injection vulnerability was found in the ABRT post-create event handler scripts in libreport. The event script queries the systemd journal for log entries matching the crashed process and writes the results to files in the dump directory without sanitizing embedded control characters. A local user can inject arbitrary content into the journal output by embedding newline characters in syslog messages, controlling the content that root writes to dump directory files.

## Affected

- `automatic_bug_reporting_tool`
- `fedora = 43`
- `fedora = 44`
- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`

## Remediation

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

## Vendor advisories

- **RHSA-2026:54272** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-08-12 · [advisory](https://access.redhat.com/errata/RHSA-2026:54272)
- **RHSA-2026:69116** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69116)
- **RHSA-2026:69115** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69115)
- **RHSA-2026:69117** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69117)
- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-54231.json)