Agentgateway MCP-to-OpenAPI request injection flaw (CVE-2026-29791)
Agentgateway, an open source data plane for agentic AI connectivity, failed to sanitize path, query, and header values when converting MCP tools/call requests into OpenAPI requests in versions prior to 0.12.0. The issue was patched in version 0.12.0.
Disclosed 6 March 2026 · Record updated 1 October 2026
Impact
Unsanitized input values in MCP tool call conversion to OpenAPI requests in Agentgateway versions before 0.12.0.
Our coverage
No articles linked to this incident yet.
Sources
- nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-29791
