Malicious code in @httttt/mcp-demo (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (2914b799b1c4e540a2ff20338186041f8053fd03cc28ad544ecdb36531a33278) The 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.
Malicious code in @httttt/mcp-demo (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (2914b799b1c4e540a2ff20338186041f8053fd03cc28ad544ecdb36531a33278) The 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.
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-14315
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a870a74acd9273b49b58abb
Added to database: 08/20/2026, 14:08:52 UTC
Last updated: 08/20/2026, 14:08:52 UTC
Views: 1
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.