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

> Local attackers can inject content into ABRT dump files via unsanitized journal entries, potentially leading to privilege escalation.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Jun 2026
- **Updated:** 21 Sep 2026
- **Also known as:** AZL-90101, GHSA-p464-2mqm-5h37

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

## Which versions are affected by CVE-2026-54231?

It affects 3 products.


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

## How do I fix CVE-2026-54231?

Apply the vendor's patch.

## Is CVE-2026-54231 being exploited?

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

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54231 and fix it if it is affected.

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

Affected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-54231/ (Markdown: https://insights.sbomify.com/CVE-2026-54231/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54231
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54231
- OSV: https://osv.dev/vulnerability/CVE-2026-54231

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-54231/
Summaries are generated and may contain mistakes; the official description above is the record.