CVE-2026-100868
Penpot before 2.18.0 Unauthenticated WebSocket Access via MCP Bridge
Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return forged results to the MCP client.
CVSS 4.0 · 5.3 Medium
EPSS < 1%
KEV · Not listed
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