{"answers":{"affected":"1 open source package ship an affected version, including twork-data-services-role-app.","exploited":"There is no known exploitation of MAL-2026-12300 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-2026-12300 is a malicious package in twork-data-services-role-app, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12300 is a malicious package: twork-data-services-role-app (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-2026-12300/ (Markdown: https://insights.sbomify.com/MAL-2026-12300/index.md)","id":"MAL-2026-12300","markdown":"https://insights.sbomify.com/MAL-2026-12300/index.md","name":"MAL-2026-12300","record":{"aliases":["GHSA-3qwr-p55r-5cjh"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require(), index.js loads _init.js which downloads a platform-specific executable from hardcoded Cloudflare Workers hosts assembled via split-string obfuscation (oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev). The binary is written to /var/tmp or %TEMP% under disguised names (.cache_\u003chex\u003e on POSIX, dotnet_diag_\u003chex\u003e.exe on Windows), chmod 0755, and spawned detached via spawn(\"/bin/sh\", [\"-c\", path + \" \u0026\"], {detached:true}) or spawn(\"cmd\",...). When HTTPS retrieval fails, the loader falls back to a DNS-TXT covert channel at c.\u003cdomain\u003e / N.\u003cdomain\u003e under *.dl.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site), concatenates base64-encoded TXT chunks, and executes the reconstructed bytes with no verification. Host strings and the child_process module name are reconstructed from split fragments (e.g. [\"oob-work\",\"er.cf102-baf.\",\"workers.de\",\"v\"].join(\"\"); require(\"child_\" + \"process\")) to evade static analysis. Installing or requiring this package auto-executes attacker-controlled code on the installer's machine.\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 twork-data-services-role-app (npm)","id":"MAL-2026-12300","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":"twork-data-services-role-app","purl":"pkg:npm/twork-data-services-role-app","source":"MAL-2026-12300"}],"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-2026-12300/"}