{"answers":{"affected":"1 open source package ship an affected version, including hubert-application-get-document-preview-am.","exploited":"There is no known exploitation of MAL-2026-11540 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-2026-11540 is a malicious package in hubert-application-get-document-preview-am, published on 4 Aug 2026."},"fix_prompt":"MAL-2026-11540 is a malicious package: hubert-application-get-document-preview-am (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-2026-11540/ (Markdown: https://insights.sbomify.com/MAL-2026-11540/index.md)","id":"MAL-2026-11540","markdown":"https://insights.sbomify.com/MAL-2026-11540/index.md","name":"MAL-2026-11540","record":{"aliases":["GHSA-7c6g-rhc6-239f"],"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 loads setup.js which selects a platform key, downloads a native binary from one of four hardcoded workers.dev endpoints (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback channel over *.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site), writes the payload to /tmp or %TEMP% under deceptive names such as dotnet_diag_\u003crand\u003e.exe and.cache_\u003crand\u003e, chmods it 755, and spawns it detached via /bin/sh -c or cmd. The hostnames are reconstructed at runtime by array.join('') to evade static analysis; the DNS-TXT channel reassembles base64 chunks from N.\u003cdomain\u003e TXT records as a covert transport when HTTPS is blocked. No hash or signature verification is performed, and the destinations are unrelated to any legitimate package publisher. A second self-contained dropper bundled in lib/telemetry.js (framed as an 'Analytics SDK') contains duplicate machinery — require(\"child_\"+\"process\"), base64 chunk decoding, fs['chmod'+'Sync'] to 0755, and cp.spawn('/bin/sh',['-c', filePath+' \u0026']) — providing an alternate execution path.\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 hubert-application-get-document-preview-am (npm)","id":"MAL-2026-11540","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":"hubert-application-get-document-preview-am","purl":"pkg:npm/hubert-application-get-document-preview-am","source":"MAL-2026-11540"}],"products":null,"published":"2026-08-04","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-2026-11540/"}