CVE-2026-54231 Abrt: unsanitized systemd journal content written to dump directory files enables content injection

What is CVE-2026-54231?

CVE-2026-54231 is a medium-severity code injection vulnerability in Fedoraproject Fedora, published on 13 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-74

Which versions are affected by CVE-2026-54231?

It affects 3 products.

Products include Fedoraproject Fedora, Redhat Automatic Bug Reporting Tool, Redhat Enterprise Linux.

How do I fix CVE-2026-54231?

Apply the vendor's patch.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-54231 being exploited?

There is no known exploitation of CVE-2026-54231 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-90101, GHSA-p464-2mqm-5h37.