CVE-2026-58497

Uni-CLI gives people and agents one command interface for websites, browsers, desktop applications, local tools, and MCP. Prior to version 0.225.2, Uni-CLI exposed the legacy JSON-RPC-over-HTTP MCP transport on loopback without validating browser Origin headers before routing requests. A malicious web page could send a CORS simple POST request, such as text/plain, to the local /mcp endpoint and deliver a JSON-RPC body to the dispatcher. If the user had started the local MCP HTTP transport, that page could drive tools/call requests against the user's local Uni-CLI server. The Streamable HTTP transport already enforced this browser-to-localhost boundary. The legacy stateless HTTP path did not, so the two HTTP transports had drifted. This issue is about the browser-to-localhost boundary; it does not change Uni-CLI's local-code-execution trust model. This issue has been patched in version 0.225.2.

• https://github.com/olo-dot-io/Uni-CLI/releases/tag/v0.225.2
• https://github.com/olo-dot-io/Uni-CLI/security/advisories/GHSA-v3f4-w7r7-v3hm

• https://github.com/olo-dot-io/Uni-CLI/releases/tag/v0.225.2
• https://github.com/olo-dot-io/Uni-CLI/security/advisories/GHSA-v3f4-w7r7-v3hm

• HIGHCVE-2026-105783PoC
• MEDIUMCVE-2022-51020PoC
• CRITICALCVE-2025-15399
• HIGHCVE-2025-70517
• HIGHCVE-2025-70522
• MEDIUMCVE-2026-100524PoC
• HIGHCVE-2026-100598PoC
• HIGHCVE-2026-100642PoC

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