# CVE-2026-5562: provectus kafka-ui Endpoint testexecutions validateAccess code injection

> Remote attackers can execute arbitrary code via the validateAccess endpoint in Kafka UI, requiring permissions but posing a critical risk.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-xcqp-9wgc-xxhj

## What is CVE-2026-5562?

CVE-2026-5562 is a medium-severity code injection vulnerability in provectus kafka-ui, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was identified in provectus kafka-ui up to 0.7.2. This impacts the function validateAccess of the file /api/smartfilters/testexecutions of the component Endpoint. The manipulation leads to code injection. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-5562?

It affects 1 product.


Products: Provectus Ui.

## How do I fix CVE-2026-5562?

No fix has been published for CVE-2026-5562 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5562 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5562 exists.

Public exploit code:

- https://github.com/personne-lambda/CVE-2026-5562-Exploit (github_poc): https://github.com/personne-lambda/CVE-2026-5562-Exploit
- Provectus kafka-ui <=0.7.2 - Remote Code Execution (nuclei): http/cves/2026/CVE-2026-5562.yaml

## Other vulnerabilities in provectus kafka-ui

- [CVE-2023-52251](https://insights.sbomify.com/CVE-2023-52251/): Code injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5562 and fix it if it is affected.

What it is: CVE-2026-5562 is a medium-severity code injection vulnerability in provectus kafka-ui, published on 5 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5562 exists.

Affected product: provectus kafka-ui. 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-2026-5562/ (Markdown: https://insights.sbomify.com/CVE-2026-5562/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5562
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5562
- OSV: https://osv.dev/vulnerability/CVE-2026-5562

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5562/
Summaries are generated and may contain mistakes; the official description above is the record.