CVE-2026-58497
CVE-2026-58497 · Uni-CLI: Legacy HTTP MCP transport accepted browser-originated localhost requests
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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 8.6 · Hoch · EPSS 0,3% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: node
Betroffene Produkte und Versionen
uni-cli
- Softwareversionen
- < 0.225.2: Betroffen
Keine Korrektur veröffentlicht
@zenalexa/unicli npm
- Betroffene Versionsbereiche
- SEMVER: < 0.225.2
Auf 0.225.2 aktualisieren