# CVE-2026-16119: nextlevelbuilder GoClaw WebSocket Approval Endpoint exec_approval.go RequestApproval authorization

> Remote attackers can bypass authorization in the WebSocket Approval Endpoint to execute arbitrary commands, requiring an upgrade to GoClaw.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jul 2026
- **Updated:** 21 Jul 2026
- **Also known as:** GHSA-jx43-52cp-c9vc

## What is CVE-2026-16119?

CVE-2026-16119 is a medium-severity missing authorization vulnerability in nextlevelbuilder GoClaw, published on 18 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in nextlevelbuilder GoClaw up to 3.13.2. This affects the function RequestApproval of the file internal/tools/exec_approval.go of the component WebSocket Approval Endpoint. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit has been made public and could be used.

Weakness: CWE-863 (Incorrect Authorization), CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-16119?


## How do I fix CVE-2026-16119?

No fix has been published for CVE-2026-16119 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-16119 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16119 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-16119 and fix it if it is affected.

What it is: CVE-2026-16119 is a medium-severity missing authorization vulnerability in nextlevelbuilder GoClaw, published on 18 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16119 exists.

Affected product: nextlevelbuilder GoClaw. 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-2026-16119/ (Markdown: https://insights.sbomify.com/CVE-2026-16119/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-16119
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-16119
- OSV: https://osv.dev/vulnerability/CVE-2026-16119

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-16119/
Summaries are generated and may contain mistakes; the official description above is the record.