{"answers":{"affected":"1 open source package ship an affected version, including metrics-pipeline-d8k2.","exploited":"There is no known exploitation of MAL-2026-5858 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-2026-5858 is a malicious package in metrics-pipeline-d8k2, published on 16 Jun 2026."},"fix_prompt":"MAL-2026-5858 is a malicious package: metrics-pipeline-d8k2 (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-2026-5858/ (Markdown: https://insights.sbomify.com/MAL-2026-5858/index.md)","id":"MAL-2026-5858","markdown":"https://insights.sbomify.com/MAL-2026-5858/index.md","name":"MAL-2026-5858","record":{"aliases":["GHSA-77q5-c2w3-pc44"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package declares `\"postinstall\": \"node run.js\"` in package.json, causing automatic execution of bundled beacon scripts on `npm install`. beacon29.js loads `child_process`, `https`, and `fs`, reads files via `fs.readFileSync` and reads `process.env`, gathers host identity (`process.platform`), and POSTs/GETs the data to remote endpoints; it also references `https://registry.npmjs.org` and `https://npm.pkg.github.com`, consistent with credential/token harvesting and potential self-propagation through registry APIs. beacon_linux.js mirrors the pattern on Linux: `require('child_process')` + `require('http')` + `os.hostname()` + `os.platform()` followed by `http.request(...)` POST to a remote host. The package's stated 'metrics pipeline' name is a cover; the only behavior on install is host fingerprinting and outbound exfiltration. Installing this package on a developer or CI machine causes immediate compromise: environment variables (which commonly hold cloud and CI tokens), file contents, and host identifiers are sent to attacker-controlled infrastructure without user interaction.\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 metrics-pipeline-d8k2 (npm)","id":"MAL-2026-5858","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":"metrics-pipeline-d8k2","purl":"pkg:npm/metrics-pipeline-d8k2","source":"MAL-2026-5858"}],"products":null,"published":"2026-06-16","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-2026-5858/"}