MAL-2026-11430 Malicious code in list-issue-predecessor-dependencies-block (npm)

npm package [email protected] auto-executes index.js from three lifecycle hooks (preinstall, install, postinstall) on npm install. The script collects installer identity and environment reconnaissance — os.hostname(), os.platform(), username, current working directory, output of shell commands (whoami, id, hostname -I via child_process), CI environment variables (GITHUB_, GITLAB_, JENKINS_*, etc.), AWS/GCP/Azure/Kubernetes cloud-metadata indicators, enumerated names of environment variables matching /KEY|SECRET|TOKEN|PASS|CRED|AUTH|API_|PRIVATE/i, and a boolean flag for the presence of NPM_TOKEN / NODE_AUTH_TOKEN — and exfiltrates it to the hardcoded Interactsh collaborator qtmetsrtvaujwklywbgw2wihc2lebzu0n.oast.fun via DNS lookups (dns.resolve of labeled subdomains), HTTPS POST to /depconf, and HTTP POST. The high version number (99.0.0) and generic internal-sounding package name are the standard dependency-confusion shape used to override private registry packages with a public squat.

The OpenSSF Package Analysis project identified 'list-issue-predecessor-dependencies-block' @ 99.0.0 (npm) as malicious.

It is considered malicious because:

• The package communicates with a domain associated with malicious activity.

• The package executes one or more commands associated with malicious behavior.