{"answers":{"affected":"1 open source package ship an affected version, including beaver-ui-multi-select-with-all.","exploited":"There is no known exploitation of MAL-2026-12818 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-2026-12818 is a malicious package in beaver-ui-multi-select-with-all, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12818 is a malicious package: beaver-ui-multi-select-with-all (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-2026-12818/ (Markdown: https://insights.sbomify.com/MAL-2026-12818/index.md)","id":"MAL-2026-12818","markdown":"https://insights.sbomify.com/MAL-2026-12818/index.md","name":"MAL-2026-12818","record":{"aliases":["GHSA-8f6w-27v9-924g"],"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 the package's main entry, index.js loads _loader.js which selects a per-platform URL, downloads an opaque native binary from one of three Cloudflare Workers subdomains (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev), with a DNS-TXT chunked-base64 fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The bytes are written to /tmp/.cache_\u003crand\u003e or %TEMP%\\dotnet_diag_\u003crand\u003e.exe, chmod 0755, and spawned detached via /bin/sh -c or cmd /c start /b. Hostnames are assembled from split string arrays (e.g. [\"oob-worker.cf99-9b3.wor\",\"kers.\",\"dev\"].join(\"\")) to evade substring scans, and file names (analytics_state, dotnet_diag) masquerade as diagnostics artifacts. A telemetry-styled opt-out gate (DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK) frames the download-and-execute as consented telemetry, but the default path is unconditional remote code execution. No hash or signature verification is performed; the URL is mutable and anonymous. The package name resembles a UI select component but its only observable behavior on import is the dropper.\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 beaver-ui-multi-select-with-all (npm)","id":"MAL-2026-12818","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":"beaver-ui-multi-select-with-all","purl":"pkg:npm/beaver-ui-multi-select-with-all","source":"MAL-2026-12818"}],"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-2026-12818/"}