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TI-2026-23377 Aliases CVE-2026-29791GHSA-v2x6-wwfw-r2rq

Agentgateway: Missing parameter sanitization in MCP to OpenAPI conversion

Priority LOW 28CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

Agentgateway is an open source data plane for agentic AI connectivity within or across any agent framework or environment. Prior to version 0.12.0, when converting MCP tools/call request to OpenAPI request, input path, query, and header values are not sanitized. This issue has been patched in version 0.12.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-07
Fix Fixed agentgateway (agentgateway): 0.12.0github.com/agentgateway/agentgateway (Go): 0.12.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
agentgatewayagentgatewaybefore 0.12.00.12.0Patch availableCNA
—github.com/agentgateway/agentgateway (Go)before 0.12.00.12.0Patch availableGHSA-v2x6-wwfw-r2rq
  • agentgateway Vendoragentgateway Affected before 0.12.0 Fixed in 0.12.0 Patch available CNA
  • github.com/agentgateway/agentgateway (Go) Vendor— Affected before 0.12.0 Fixed in 0.12.0 Patch available GHSA-v2x6-wwfw-r2rq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lfprojects:agentgateway:*:*:*:*:*:*:*:*before 0.12.0VulnerableMLflow
  • cpe:2.3:a:lfprojects:agentgateway:*:*:*:*:*:*:*:* Versions before 0.12.0 Vulnerable ·MLflow

Remediation

  • Fix · CNA agentgateway (agentgateway) Fixed in 0.12.0
  • Fix · GHSA-v2x6-wwfw-r2rq github.com/agentgateway/agentgateway (Go) Fixed in 0.12.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29791
  2. 2026-10-03 Alias added: GHSA-v2x6-wwfw-r2rq

References

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences