CWE-918

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              "value": "\u003cdiv\u003e\u003cdiv\u003eOperators who cannot immediately upgrade can reduce exposure by:\u003c/div\u003e\u003cbr/\u003e\u003cdiv\u003e1. **Disable A2A** \u2014 set the environment variable `MCPGATEWAY_A2A_ENABLED=False` to disable the A2A subsystem entirely. This removes the vulnerable endpoint from the attack surface at the cost of A2A functionality.\u003c/div\u003e\u003cdiv\u003e2. **Restrict A2A create/invoke permissions** \u2014 revoke A2A creation and invocation rights from developer and team_admin roles in environments where A2A is not required.\u003c/div\u003e\u003cdiv\u003e3. **Network-level egress controls** \u2014 enforce outbound network policy at the host or cloud level to block the gateway process from reaching cloud metadata endpoints and private RFC 1918 address ranges, preventing exploitation of the DNS-rebinding window even if a rebind attempt succeeds.\u003c/div\u003e\u003cbr/\u003e\u003cdiv\u003eNone of these mitigations eliminate the underlying vulnerability; IBM strongly recommends upgrading to the fixed version.\u003c/div\u003e\u003c/div\u003e"
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