CVE-2026-29791

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

06/03/2026

Last modified:

06/03/2026

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

4.90

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://github.com/agentgateway/agentgateway/security/advisories/GHSA-v2x6-wwfw-r2rq