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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.

PUBLISHED Reserved 2026-04-08 | Published 2026-04-09 | Updated 2026-04-13 | Assigner VulDB




MEDIUM: 6.9CVSS: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
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Server-Side Request Forgery

Product status

0.2.0
affected

0.2.1
affected

Timeline

2026-04-08:Advisory disclosed
2026-04-08:VulDB entry created
2026-04-08:VulDB entry last update

Credits

BruceJin (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/356288 (VDB-356288 | atototo api-lab-mcp HTTP http-server.ts test_http_endpoint server-side request forgery) vdb-entry technical-description

vuldb.com/vuln/356288/cti (VDB-356288 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/789765 (Submit #789765 | atototo api-lab-mcp 0.2.1 Server-Side Request Forgery) third-party-advisory

github.com/atototo/api-lab-mcp/issues/4 issue-tracking

github.com/BruceJqs/public_exp/issues/6 exploit issue-tracking

github.com/atototo/api-lab-mcp/ product

cve.org (CVE-2026-5832)

nvd.nist.gov (CVE-2026-5832)

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