CVE-2026-124726

Apache APISIX: openapi-to-mcp tool call can reach an API path the document does not declare

Published Nov 13, 2026 CVSS 4.0 · 6.9 Medium EPSS n/a KEV · Not listed
Description
Relative Path Traversal, with Unintended Proxy vulnerability in Apache APISIX.



A caller of the MCP endpoint can invoke endpoints the OpenAPI document
never declared, under the declared tool's HTTP method, using the credentials the
Route adds. This issue affects Apache APISIX: from 3.19.0 before 3.20.0.



Users are recommended to upgrade to version 3.20.0, which fixes the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apache
Apache apache Apisix
Apache apisix
Apache Software Foundation
Apache Software Foundation apache Apisix
Vendors & Products Apache
Apache apache Apisix
Apache apisix
Apache Software Foundation
Apache Software Foundation apache Apisix
Type Values Removed Values Added
Description Relative Path Traversal, with Unintended Proxy vulnerability in Apache APISIX. A caller of the MCP endpoint can invoke endpoints the OpenAPI document never declared, under the declared tool's HTTP method, using the credentials the Route adds. This issue affects Apache APISIX: from 3.19.0 before 3.20.0. Users are recommended to upgrade to version 3.20.0, which fixes the issue.
Title Apache APISIX: openapi-to-mcp tool call can reach an API path the document does not declare
Weaknesses CWE-23
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 13, 2026, 8:02 PM
Reserved
Nov 9, 2026, 11:18 AM
Status
Received
Published
Nov 13, 2026, 6:17 PM
Modified
Nov 13, 2026, 8:18 PM