Moderate severityNVD Advisory· Published Mar 6, 2026· Updated Mar 9, 2026

Agentgateway: Missing parameter sanitization in MCP to OpenAPI conversion

CVE-2026-29791

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
github.com/agentgateway/agentgatewayGo	< 0.12.0	0.12.0

Affected products

ghsa-coords
pkg:golang/github.com/agentgateway/agentgateway
Range: < 0.12.0
Agentgateway/Agentgatewaycpe-rescue
Range: < 0.12.0

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-v2x6-wwfw-r2rqghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-29791ghsaADVISORY
github.com/agentgateway/agentgateway/commit/9a5287569d892e77a8be8c3bb7bf3d7744244274ghsaWEB
github.com/agentgateway/agentgateway/security/advisories/GHSA-v2x6-wwfw-r2rqghsax_refsource_CONFIRMWEB

News mentions

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cvss	0.260
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000