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CVE-2026-124719

Apache APISIX: identity spoofing in openapi-to-mcp

  • Low 2.3

Description

Authentication bypass by spoofing vulnerability in Apache APISIX. When a Route's configured headers carry a caller identity and the OpenAPI document declares the same header, a caller can act as another identity against the upstream API. 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.

Key facts

Published
13 Nov 2026
Last changed
13 Nov 2026
Assigned by
apache
EPSS
0.463% likely to be exploited in the next 30 days, higher than 40.639% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: none; Automatable: no; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 2.3CVSS 4.0, Lowfrom the CNA (apache)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
Apache Software FoundationApache APISIX
  • Default status: unaffected
  • 3.19.0 up to but excluding 3.20.0 (affected)

Timeline

  1. 13 Nov 2026 Published

Weakness

References