CVE-2026-54231

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

State: Published
Severity: 5.5 Medium
Published: Jun 13, 2026
Updated: Sep 21, 2026
Reserved: Jun 12, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N	redhat

Weaknesses

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Affected Products

Product	Versions
Red Hat Enterprise Linux 8Red Hat	0:2.10.9-26.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	0:2.10.9-25.el8_4.2 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat	0:2.10.9-25.el8_4.2 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat	0:2.10.9-25.el8_6.2 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnRed Hat	0:2.10.9-25.el8_6.2 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat	0:2.10.9-25.el8_8.2 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat	0:2.10.9-25.el8_8.2 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat

References

RHSA-2026:54272vendor-advisory
RHSA-2026:69115vendor-advisory
RHSA-2026:69116vendor-advisory
RHSA-2026:69117vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-54231vdb-entry
RHBZ#2488571issue-tracking

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