Malicious code in @revizahoshii/hoshino-mcp-server (npm)
- Product
- @revizahoshii/hoshino-mcp-server (npm package)
- Affected
- all versions
- Fixed in
- No fix yet
Last verified against sources: October 26, 2026
Am I affected?
@revizahoshii/hoshino-mcp-server (npm package): affected all versions. No fix has been reported yet.
- Check your version: run
npm ls @revizahoshii/hoshino-mcp-server. Versions all versions of @revizahoshii/hoshino-mcp-server are affected. [1]
What to do now
- Remove the package if it is installed: run
npm uninstall @revizahoshii/hoshino-mcp-server. [1] - Remove the package from the computer. [1]
- Rotate all secrets and keys stored on that computer immediately, from a different computer. [1]
General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.
What happened
Impact
What was done
- The source lists no patched version for this package. [1]
Sources
- MAL-2026-17825 — OSV (Open Source Vulnerabilities)
Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.
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Malicious code in @revizahoshii/hoshino-mcp-server (npm)
Product: @revizahoshii/hoshino-mcp-server (npm package) | Affected: all versions | Fixed in: No fix yet
Summary: The npm package @revizahoshii/hoshino-mcp-server contains malicious code.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/10/mal-2026-17825-revizahoshii-hoshino-mcp-server-npm-packageCorrections
Report an error or request a correction. We review requests within 5 business days and add a dated correction note.
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