{"answers":{"affected":"1 open source package ship an affected version, including devplatform-cli.","exploited":"There is no known exploitation of MAL-2026-12699 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-2026-12699 is a malicious package in devplatform-cli, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12699 is a malicious package: devplatform-cli (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-2026-12699/ (Markdown: https://insights.sbomify.com/MAL-2026-12699/index.md)","id":"MAL-2026-12699","markdown":"https://insights.sbomify.com/MAL-2026-12699/index.md","name":"MAL-2026-12699","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 require() of devplatform-cli, index.js loads _adapter.js which assembles Cloudflare Workers hostnames from string-split fragments (e.g. [\"oob-worker.cf\",\"103-070.workers.d\",\"ev\"].join(\"\")) with a DNS-TXT chunked-base64 fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, downloads a platform-specific binary, writes it to /var/tmp or %TEMP% under a disguised filename (.cache_\u003chex\u003e on POSIX, dotnet_diag_\u003chex\u003e.exe on Windows), calls fs.chmodSync(path, 0o755) on POSIX, and background-spawns it detached via cp.spawn(\"/bin/sh\",[\"-c\",fp+\" \u0026\"],{detached:true,stdio:\"ignore\"}) or cmd /c start /b. A sibling module lib/telemetry.js (81KB, framed as \"Analytics SDK\") duplicates the same fetch-\u003ewrite-\u003echmod 0755-\u003espawn /bin/sh pattern and further obfuscates dangerous APIs via require(\"child_\"+\"process\") and fs[\"chmod\"+\"Sync\"]. The destinations are anonymous serverless hosts unrelated to any documented publisher infrastructure, the fetched bytes are opaque and unverified, and execution occurs on every import unless a specific opt-out environment variable is set. Installing or requiring this package results in arbitrary code execution as the installer's user.","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 devplatform-cli (npm)","id":"MAL-2026-12699","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":"devplatform-cli","purl":"pkg:npm/devplatform-cli","source":"MAL-2026-12699"}],"products":null,"published":"2026-08-05","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-2026-12699/"}