executable-stories-mcp
Now part of Executable Stories Cloud.
Read-only MCP server for executable-stories StoryReport JSON behavior catalogs.
This report shows the evidence for executable-stories-mcp@0.3.3. 1 of 18 known versions is blocked or flagged. The newest version, 0.5.0, is allowed. See all versions.
OpenSSF/OSV Malicious Advisory
imported 4mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-5255 confirms this npm version as malicious.
Advisory
MAL-2026-5255
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in executable-stories-mcp (npm)
Details
executable-stories-mcp@0.3.3 ships a bundled HTTP server module (dist/http.cjs and dist/http.js) where pattern matchers flagged co-occurrence of require("child_process"), POST/GET calls, and the literal string "ping". Behavioral tracing of the bundle did not complete, so it is not confirmed whether the GET/POST sites point at attacker-controlled destinations or at user-configured/MCP-protocol endpoints, nor whether "ping" is an executed shell command versus a string token (e.g., a healthcheck route name). The package is an MCP server, a class of tool that legitimately exposes HTTP routes and may shell out, so the keyword stack alone does not establish exfiltration. Routing to human review to inspect the bundle and confirm whether any hardcoded outbound destination or command-injection sink is present.
## Source: google-open-source-security (a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb) The Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized `binding.gyp` files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to executable-stories-mcp@0.3.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing executable-stories-mcp@0.3.3. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
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