CVE-2026-5029
Received Received - Intake
BaseFortify

Publication date: 2026-05-12

Last updated on: 2026-05-12

Assigner: CERT.PL

Description
A remote code execution vulnerability exists in Code Runner MCP Server when run with the --transport http option, which exposes the /mcp JSON-RPC endpoint without authentication on port 3088. An unauthenticated remote attacker can invoke the run-code MCP tool to supply arbitrary source code and execute it via child_process.exec() using the specified language interpreter. This allows execution of arbitrary code with the privileges of the user running the server. This vulnerability has not been fixed and might affect the project in all versions.
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Meta Information
Published
2026-05-12
Last Modified
2026-05-12
Generated
2026-06-21
EPSS Evaluated
2026-06-20
NVD
CVE-2026-5029
EUVD
EUVD-2026-29437
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
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