# CVE-2026-56447: MISP remote code execution via arbitrary rdkafka configuration path

> Authenticated administrators can achieve remote code execution by pointing Kafka configuration to a malicious file that loads external libraries.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Jun 2026
- **Updated:** 22 Jun 2026
- **Also known as:** GHSA-834x-pvxg-xh58

## What is CVE-2026-56447?

CVE-2026-56447 is a critical code injection vulnerability in Misp-Project Misp, published on 22 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

MISP allowed an authenticated site administrator to set the Kafka_rdkafka_config setting to an arbitrary filesystem path. MISP subsequently parsed the referenced INI file and passed its options to rdkafka. A crafted attacker-controlled configuration file could use rdkafka options such as plugin.library.paths to load an external library, resulting in arbitrary code execution with the privileges of the MISP process. An attacker could leverage a MISP-writable location, such as an uploaded file or administrative image, to host the malicious configuration file.

The issue is fixed by restricting the setting to absolute .ini files located only in approved configuration directories outside the webroot and MISP upload targets.

Weakness: CWE-829 (Inclusion of Functionality from Untrusted Control Sphere)

## Which versions are affected by CVE-2026-56447?

It affects 1 product.


Products: Misp-Project Misp.

## How do I fix CVE-2026-56447?

No fix has been published for CVE-2026-56447 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-56447 being exploited?

There is no known exploitation of CVE-2026-56447 in the wild and no public exploit code.

## Other vulnerabilities in Misp-Project Misp

- [CVE-2024-46918](https://insights.sbomify.com/CVE-2024-46918/): Missing authorization in n/a (critical 9.8)
- [CVE-2024-45509](https://insights.sbomify.com/CVE-2024-45509/): Missing authorization in n/a (critical 9.8)
- [CVE-2024-29858](https://insights.sbomify.com/CVE-2024-29858/): File upload in n/a (critical 9.8)
- [CVE-2024-29859](https://insights.sbomify.com/CVE-2024-29859/): File upload in n/a (critical 9.8)
- [CVE-2024-25674](https://insights.sbomify.com/CVE-2024-25674/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-56447 and fix it if it is affected.

What it is: CVE-2026-56447 is a critical code injection vulnerability in Misp-Project Misp, published on 22 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-56447 in the wild and no public exploit code.

Affected product: Misp-Project Misp. 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-2026-56447/ (Markdown: https://insights.sbomify.com/CVE-2026-56447/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-56447
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56447
- OSV: https://osv.dev/vulnerability/CVE-2026-56447

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-56447/
Summaries are generated and may contain mistakes; the official description above is the record.