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.

CVSS

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

23 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-23 15:17

Updated : 2026-10-23 21:17

NVD link : CVE-2026-58497

Mitre link : CVE-2026-58497

CVE.ORG link : CVE-2026-58497

JSON object : View

Products Affected

No product.

CWE

CWE-346

Origin Validation Error

CWE-352

Cross-Site Request Forgery (CSRF)

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