olo-dot-io Uni-CLI up to 0.225.1 HTTP Transport cross-domain policy

Summaryinfo

A vulnerability classified as problematic has been found in olo-dot-io Uni-CLI up to 0.225.1. This affects an unknown part of the component HTTP Transport. This manipulation causes cross-domain policy. This vulnerability is tracked as CVE-2026-58497. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in olo-dot-io Uni-CLI up to 0.225.1. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component HTTP Transport. The manipulation with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-58497 since 06/30/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

Upgrading to version 0.225.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• olo-dot-io

Name

• Uni-CLI

Version

• 0.225.0
• 0.225.1

Website

• Product: https://github.com/olo-dot-io/Uni-CLI/

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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