CVE-2026-54231

Abrt: unsanitized systemd journal content written to dump directory files enables content injection

MEDIUM
5.5
CVSS Score
Published: June 13, 2026 at 02:34 AM UTC
Updated: September 21, 2026 at 06:17 AM UTC
3 products affected across 2 vendorsFedoraEnterprise LinuxAutomatic Bug Reporting Tool

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 0:2.10.9-25.el8_4.2 (unaffected)
Vendor states this is fixed in 0:2.10.9-25.el8_6.2 (unaffected)
Vendor states this is fixed in 0:2.10.9-25.el8_8.2 (unaffected)
Vendor states this is fixed in 0:2.10.9-26.el8_10 (unaffected)
Vendor states this is fixed in 6 (unknown)

References (6)

VDB Entryx_refsource_REDHATVendor Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-54231
Issue Trackingx_refsource_REDHATVendor Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2488571
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:54272
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:69116

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-74

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