{"answers":{"affected":"1 open source package ship an affected version, including ecto-corsair-whisper-6f3b9.","exploited":"There is no known exploitation of MAL-2026-5640 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-5640 is a malicious package in ecto-corsair-whisper-6f3b9, published on 11 Jun 2026."},"fix_prompt":"MAL-2026-5640 is a malicious package: ecto-corsair-whisper-6f3b9 (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-5640/ (Markdown: https://insights.sbomify.com/MAL-2026-5640/index.md)","id":"MAL-2026-5640","markdown":"https://insights.sbomify.com/MAL-2026-5640/index.md","name":"MAL-2026-5640","record":{"aliases":["GHSA-5wjv-qgmc-8w9m"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package declares a postinstall lifecycle hook (postinstall.js) that runs automatically on `npm install`. The script shells out via curl to the EC2 IMDSv2 metadata endpoint to obtain IAM role credentials, exports them, then iterates AWS Secrets Manager across multiple regions calling `aws secretsmanager list-secrets` and `get-secret-value`, and additionally dumps any process environment variable matching `FLAG|HTB|SECRET|AWS_`. The captured blob is chunked and HTTP PUT to a hardcoded bare-IP destination (http://154.57.164.71:30782) framed as a fake 'manifest' JSON. Execution is gated by an `isAppWorker()` check (hostname matches a 12-hex Docker-style ID and cwd contains `/app/node_modules`), which narrows the victim profile to containerized CI/build workers but does not change the nature of the attack. Additional behavior includes scanning /app for HackTheBox flag patterns (`/HTB\\{[^}]+\\}/`) and reading /app/src/main.rs, /app/main.rs, /app/flag.txt. This is unambiguous install-time credential theft plus remote exfiltration: any installer whose container matches the gate has IAM role credentials, secrets, and environment-variable secrets sent to attacker-controlled infrastructure.\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in ecto-corsair-whisper-6f3b9 (npm)","id":"MAL-2026-5640","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":[],"package":"ecto-corsair-whisper-6f3b9","purl":"pkg:npm/ecto-corsair-whisper-6f3b9","source":"MAL-2026-5640"}],"products":null,"published":"2026-06-11","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-5640/"}