{"answers":{"affected":"1 open source package ship an affected version, including wrangler-deploy.","exploited":"There is no known exploitation of MAL-2026-5267 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-2026-5267 is a malicious package in wrangler-deploy, published on 5 Jun 2026."},"fix_prompt":"MAL-2026-5267 is a malicious package: wrangler-deploy (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-2026-5267/ (Markdown: https://insights.sbomify.com/MAL-2026-5267/index.md)","id":"MAL-2026-5267","markdown":"https://insights.sbomify.com/MAL-2026-5267/index.md","name":"MAL-2026-5267","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Package name `wrangler-deploy` is close to Cloudflare's official `wrangler` CLI, which raises confusion-risk concerns for developers who may install it expecting an official Cloudflare tool. Pattern-based signals fired on `dist/cli/index.js`, `dist/core/dev-ui.js`, `dist/core/runtime.js`, `dist/core/sandbox-proxy.js`, and `dist/core/crypto.js` based on co-occurrence of keywords like `ping`, `POST`/`GET`, `Buffer.from(..., 'base64')`, and `hostname` in minified/bundled code. These keyword patterns are consistent with a Wrangler-shaped CLI (HTTP requests to Cloudflare APIs, dev server, base64 token handling) but cannot be conclusively distinguished from exfiltration patterns without semantic verification of the bundled code. No specific attacker-controlled endpoint, credential-harvest path, install-time lifecycle hook, or dropper has been identified. Routing to human review to verify whether the package is a legitimate Cloudflare-adjacent tool, an unofficial deploy wrapper, or a name-confusion squat with hidden behavior in the minified bundles.\n\nThe Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized `binding.gyp` files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.","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 wrangler-deploy (npm)","id":"MAL-2026-5267","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":"wrangler-deploy","purl":"pkg:npm/wrangler-deploy","source":"MAL-2026-5267"}],"products":null,"published":"2026-06-05","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-2026-5267/"}