CVE-2026-124726

MEDIUMCVSS 6.9/10

Last modified

CVE-2026-124726 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. 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..

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.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Apache Software FoundationApache APISIX>= 3.19.0, < 3.20.0

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-124726?
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.
How severe is CVE-2026-124726?
CVE-2026-124726 has a CVSS score of 6.9/10 (MEDIUM severity).
How do I fix CVE-2026-124726?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST