{"answers":{"affected":"1 open source package ship an affected version, including intl-ads.","exploited":"There is no known exploitation of MAL-2026-4587 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-2026-4587 is a malicious package in intl-ads, published on 25 May 2026."},"fix_prompt":"MAL-2026-4587 is a malicious package: intl-ads (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-2026-4587/ (Markdown: https://insights.sbomify.com/MAL-2026-4587/index.md)","id":"MAL-2026-4587","markdown":"https://insights.sbomify.com/MAL-2026-4587/index.md","name":"MAL-2026-4587","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On `npm install`, the package's `scripts.preinstall` runs poc.js which collects hostname, username, full network configuration (ipconfig/ip a/resolv.conf), `id`/`whoami /all`, git remote, parent package.json, and CI configuration files (.gitlab-ci.yml,.github/workflows, Jenkinsfile, azure-pipelines.yml). It then iterates `process.env` and harvests any variable whose name contains AWS, AZURE, GITHUB, GITLAB, JENKINS, NPM, TOKEN, CI, BUILD, etc. — capturing values, not just names — and POSTs the JSON payload to `d8a5d9pon5bugoc35cngp9hcregcqyezu.oast.me` over HTTPS, with a DNS callback as a secondary channel. The package self-describes as authorized bug-bounty research targeting Walmart's private namespace via dependency confusion, but the public npm registry has no scope restriction: any developer or CI system that resolves this name will execute the recon and leak credentials. The OAST destination is an Interactsh collector, not a Walmart-owned endpoint, so harvested data leaves any authorized scope. Concrete installer harm: AWS/Azure/GitHub/GitLab/npm tokens present in CI environment are exfiltrated; host fingerprinting enables follow-on attacks.","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 intl-ads (npm)","id":"MAL-2026-4587","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":[],"last_affected":[],"package":"intl-ads","purl":"pkg:npm/intl-ads","source":"MAL-2026-4587"}],"products":null,"published":"2026-05-25","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-2026-4587/"}