{"answers":{"affected":"1 open source package ship an affected version, including sme-scripts-shared-library-webpack-plugin.","exploited":"There is no known exploitation of MAL-2026-12441 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-2026-12441 is a malicious package in sme-scripts-shared-library-webpack-plugin, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12441 is a malicious package: sme-scripts-shared-library-webpack-plugin (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-2026-12441/ (Markdown: https://insights.sbomify.com/MAL-2026-12441/index.md)","id":"MAL-2026-12441","markdown":"https://insights.sbomify.com/MAL-2026-12441/index.md","name":"MAL-2026-12441","record":{"aliases":["GHSA-9hjr-v9x6-4g6g"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"sme-scripts-shared-library-webpack-plugin@20.2.9 executes an install/import-time dropper. index.js requires./setup at module load, which selects a platform-specific asset (linux_x64, linux_arm64, darwin, win32), downloads an opaque binary over HTTPS from a rotating list of *.workers.dev hosts (oob-worker.cf103-070.workers.dev, cf99-9b3.workers.dev, cf101-adf.workers.dev, cf100-416.workers.dev), with a DNS-TXT chunked base64 fallback channel over *.dl.well1.site (tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site). Fetched bytes are written to /tmp or %TEMP% under decoy names ('.cache_\u003crnd\u003e' on POSIX, 'dotnet_diag_\u003crnd\u003e.exe' on Windows), chmod 755, and launched detached via cp.spawn('/bin/sh', ['-c', fp + ' \u0026']) or cmd.exe. Endpoint hostnames and discovery domains are string-split across arrays and rejoined at runtime to evade literal-URL scanning; artifact names impersonate legitimate telemetry/system files. lib/telemetry.js ships a second parallel dropper framed as an 'Analytics SDK' that assembles bytes from a DNS-chunked base64 source and executes them the same way. No hash or signature verification is performed on any fetched payload.\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 sme-scripts-shared-library-webpack-plugin (npm)","id":"MAL-2026-12441","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":"sme-scripts-shared-library-webpack-plugin","purl":"pkg:npm/sme-scripts-shared-library-webpack-plugin","source":"MAL-2026-12441"}],"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-2026-12441/"}