{"answers":{"affected":"1 open source package ship an affected version, including claims-is-mobile-layout.","exploited":"There is no known exploitation of MAL-2026-12626 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-2026-12626 is a malicious package in claims-is-mobile-layout, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12626 is a malicious package: claims-is-mobile-layout (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-2026-12626/ (Markdown: https://insights.sbomify.com/MAL-2026-12626/index.md)","id":"MAL-2026-12626","markdown":"https://insights.sbomify.com/MAL-2026-12626/index.md","name":"MAL-2026-12626","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 the package, index.js unconditionally loads./_vendor.js, which selects a platform-specific endpoint, downloads a native binary over HTTPS, writes it to /tmp/.cache_\u003chex\u003e on Linux/macOS or %TEMP%\\dotnet_diag_\u003chex\u003e.exe on Windows, chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe. Destination hostnames are assembled at runtime via Array.join over split string literals (e.g. 'oob-worker.cf102-baf.workers.dev' on anonymous Cloudflare Workers subdomains) to evade static URL/domain scanning. A DNS-TXT covert-channel fallback under *.dl.wel1.ru chunks a base64 payload across numbered TXT records, reassembles it, and decodes it as executable content. The dropped binary is staged under cover-story names ('analytics_state', 'dotnet_diag_*') that do not match the package's advertised 'mobile layout' purpose.","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 claims-is-mobile-layout (npm)","id":"MAL-2026-12626","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":"claims-is-mobile-layout","purl":"pkg:npm/claims-is-mobile-layout","source":"MAL-2026-12626"}],"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-2026-12626/"}