create-docs-mcpnpm
Advisory published Updated
create-docs-mcp is a confirmed malicious npm package (MAL-2026-5397) that steals credentials and exfiltrates sensitive data (malicious version 9999.99.99). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in create-docs-mcp (npm)
What this malware does
Package is published at version 9999.99.99 — the canonical high-version override used in dependency-confusion attacks against private/internal package names — with a description self-identifying as a name referenced in a private repo. On npm install, postinstall.js POSTs JSON to https://ddactic-lab.online/sc/beacon containing package name/version, Node version, OS, CI detection, and the installer's GITHUB_REPOSITORY, GITHUB_REPOSITORY_OWNER, and GITHUB_WORKFLOW environment variables when present. A DNS-encoded fallback is also emitted to subdomains of b.ddactic-lab.online to bypass HTTP egress filtering. The package's library entry point is a no-op self-require; its sole functional behavior is the install-time recon beacon. Installer harm: private repository slugs, owner names, and workflow identifiers leak from CI pipelines to an attacker-controlled domain on every install, identifying which organizations are vulnerable to follow-on dependency-confusion attacks against this name.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for create-docs-mcp (version 9999.99.99).
If you installed it — respond
create-docs-mcp is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If create-docs-mcp was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks create-docs-mcp-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.