CVE-2026-45805

HIGH8.8

Penpot: MCP REPL server binds to 0.0.0.0 with unauthenticated /execute endpoint — RCE

Published Jul 15, 2026

Modified 1 weeks ago

Details

Penpot is an open-source design tool for design and code collaboration. Prior to 2.15.0, Penpot MCP's mcp/packages/server/src/ReplServer.ts bound the ReplServer to 0.0.0.0:4403 and exposed an unauthenticated /execute endpoint that passed the code field to PluginBridge.executePluginTask(), allowing anyone on the network to execute JavaScript on the server. This issue is fixed in version 2.15.0.

References

WEB

https://github.com/penpot/penpot/commit/798ee46b4a84ee6dfc756b001f33acbe0280d62f

WEB

https://github.com/penpot/penpot/issues/9518

WEB

https://github.com/penpot/penpot/releases/tag/2.15.0

WEB

https://github.com/penpot/penpot/security/advisories/GHSA-22qr-rp27-j9wm

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-45805

CVSS Analysis