CVE-2026-5832 atototo api-lab-mcp HTTP http-server.ts test_http_endpoint server-side request forgery
Remote attackers can exploit a server-side request forgery vulnerability in the api-lab-mcp library to access internal resources via the HTTP interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5832?
CVE-2026-5832 is a medium-severity server-side request forgery vulnerability in atototo api-lab-mcp, published on 9 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in atototo api-lab-mcp up to 0.2.1. This affects the function analyze_api_spec/generate_test_scenarios/test_http_endpoint of the file src/mcp/http-server.ts of the component HTTP Interface. This manipulation of the argument source/url causes server-side request forgery. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-918
Which versions are affected by CVE-2026-5832?
2 open source packages ship an affected version, including api-lab-mcp.
| Package | Affected | Fixed in |
|---|---|---|
api-lab-mcp npm | All versions to 0.2.1 | None |
api-lab-mcp npm | All versions to 0.2.1 | None |
How do I fix CVE-2026-5832?
No fix has been published for CVE-2026-5832 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-5832 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5832 exists.
Sources
Also known as GHSA-crh9-3gjh-m6gc.