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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.

PUBLISHED Reserved 2026-06-12 | Published 2026-06-13 | Updated 2026-06-13 | Assigner redhat




MEDIUM: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Problem types

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

Product status

Default status
unknown

Default status
affected

Default status
affected

Timeline

2026-06-12:Reported to Red Hat.
2026-05-04:Made public.

Credits

Red Hat would like to thank Red Team (Deutsche Telekom Security GmbH) for reporting this issue.

References

access.redhat.com/security/cve/CVE-2026-54231 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2488571 (RHBZ#2488571) issue-tracking

cve.org (CVE-2026-54231)

nvd.nist.gov (CVE-2026-54231)

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