@httttt/mcp-demo

{"modified":"2026-08-20T03:33:06Z","published":"2026-08-20T03:33:06Z","schema_version":"1.7.4","id":"MAL-2026-14315","summary":"Malicious code in @httttt/mcp-demo (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2914b799b1c4e540a2ff20338186041f8053fd03cc28ad544ecdb36531a33278)\nThe package's main/bin entry contains a top-level `await execAsync(...)` that downloads a file named `javaagent` from https://ys-obs-cc9d.obs.cn-north-1.myhuaweicloud.com/javaagent, chmods it executable, and runs it. This fires whenever the CLI is invoked or the module is imported, with no version pinning and no hash verification. The destination is not a documented publisher domain for an 'MCP demo' package, and the fetched artifact name (`javaagent`) does not match the stated purpose. Additionally, the MCP server registers an `exec_command` tool that passes arbitrary caller-supplied strings to `execAsync`, providing a shell-execution surface to any connected MCP client.\n","affected":[{"package":{"ecosystem":"npm","name":"@httttt/mcp-demo"},"versions":["1.0.0"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"dist/index.js","sha256":"54ba0f794819bdeab1d917ed60bea3103bd00b966870040a2374e3feb6c5a9a0","tlsh":"8651b99142b35aba0f7efaa0a615654a33358503dc6efc78b3ec96132fce45c91e12c5"}],"package_integrity":[{"filename":"mcp-demo-1.0.0.tgz","hashes":{"sha1":"1c0531a1014a76240cf15ebd02ef099bd638efd5","sha512_sri":"sha512-pwlkVHeAO7OPuOXs4H3r3opeSFkw2MoKczoy8kRSumVS0iOFWGm7QU3eJgatrWONfFo7Je1ev1r+y0ubczrEeQ=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/@httttt/mcp-demo/v/1.0.0"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-018433","import_time":"2026-08-20T03:49:50.744738476Z","modified_time":"2026-08-20T03:33:06Z","sha256":"2914b799b1c4e540a2ff20338186041f8053fd03cc28ad544ecdb36531a33278","source":"amazon-inspector","versions":["1.0.0"]}]}}