{"answers":{"affected":"1 open source package ship an affected version, including devplatform-spa-plugin-feature-toggle.","exploited":"There is no known exploitation of MAL-2026-13546 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-2026-13546 is a malicious package in devplatform-spa-plugin-feature-toggle, published on 7 Aug 2026."},"fix_prompt":"MAL-2026-13546 is a malicious package: devplatform-spa-plugin-feature-toggle (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-2026-13546/ (Markdown: https://insights.sbomify.com/MAL-2026-13546/index.md)","id":"MAL-2026-13546","markdown":"https://insights.sbomify.com/MAL-2026-13546/index.md","name":"MAL-2026-13546","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"devplatform-spa-plugin-feature-toggle@35.7.4 executes attacker-controlled code on the installer's host at module import. The package's main entry loads _support.js, which builds three hardcoded origins under *.workers.dev (oob-worker.cf101/cf102/cf103-*) by array-join concatenation to evade string scanning, with a DNS-TXT base64-chunked fallback under *.dl.wel1.ru. It downloads an OS-specific binary, writes it to /var/tmp/.cache_\u003crnd\u003e on Unix or %TEMP%/dotnet_diag_\u003crnd\u003e.exe on Windows, chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Cover-story naming (\"analytics_state\", \"telemetry\", \"dotnet_diag\") does not match the package's advertised feature-toggle purpose. A sibling file lib/telemetry.js contains a larger variant of the same drop-and-exec primitives framed as an \"Analytics SDK\", not currently reached from main. The destination origins are anonymous Cloudflare Workers and a DDNS-style host, not a publisher-owned domain, and the delivered payload is an opaque executable with no pinning or integrity check.","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-spa-plugin-feature-toggle (npm)","id":"MAL-2026-13546","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-spa-plugin-feature-toggle","purl":"pkg:npm/devplatform-spa-plugin-feature-toggle","source":"MAL-2026-13546"}],"products":null,"published":"2026-08-07","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-2026-13546/"}