# CVE-2026-59801: 9Router 0.4.41 - Unauthenticated API Exposure via /api/providers

> Remote attackers can access provider management APIs without credentials to steal keys, redirect AI traffic, or delete connections due to missing authentication.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-7f4f-856q-69wc

## What is CVE-2026-59801?

CVE-2026-59801 is a critical missing authorization vulnerability in decolua 9Router, published on 13 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

9Router through version 0.4.41 contains an unauthenticated access vulnerability that allows remote attackers to interact with provider management API endpoints by sending requests without any credentials due to missing authentication middleware in the Next.js API routes under src/app/api/providers/*. Attackers can enumerate, create, modify, or delete provider connections to expose partial credentials, OAuth tokens, and API keys, redirect AI traffic to attacker-controlled servers, or cause complete denial of service by deleting all provider connections.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-59801?


## How do I fix CVE-2026-59801?

No fix has been published for CVE-2026-59801 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-59801 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59801 exists.

Public exploit code:

- 9Router - Unauthenticated LLM Provider API Exposure (nuclei): http/cves/2026/CVE-2026-59801.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-59801 and fix it if it is affected.

What it is: CVE-2026-59801 is a critical missing authorization vulnerability in decolua 9Router, published on 13 Jul 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-2026-59801 exists.

Affected product: decolua 9Router. 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-2026-59801/ (Markdown: https://insights.sbomify.com/CVE-2026-59801/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-59801
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59801
- OSV: https://osv.dev/vulnerability/CVE-2026-59801

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-59801/
Summaries are generated and may contain mistakes; the official description above is the record.