{"answers":{"affected":"1 open source package ship an affected version, including twork-data-services-counterfree.","exploited":"There is no known exploitation of MAL-2026-12289 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-2026-12289 is a malicious package in twork-data-services-counterfree, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12289 is a malicious package: twork-data-services-counterfree (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-2026-12289/ (Markdown: https://insights.sbomify.com/MAL-2026-12289/index.md)","id":"MAL-2026-12289","markdown":"https://insights.sbomify.com/MAL-2026-12289/index.md","name":"MAL-2026-12289","record":{"aliases":["GHSA-5g8h-2mx8-cxhm"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"index.js unconditionally requires./_init on load. _init.js selects a platform-specific binary path, fetches an opaque payload over HTTPS from attacker-controlled Cloudflare Workers hosts whose hostnames are assembled at runtime by joining short string fragments (e.g. 'oob-worker.cf102' + '-baf.work' + 'ers.' + 'dev' → oob-worker.cf102-baf.workers.dev; sibling hosts oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev). If HTTPS mirrors are unreachable, the loader falls back to a DNS-TXT covert channel: it resolves TXT on c.\u003cdomain\u003e under *.dl.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site) to obtain a chunk count, resolves numbered subdomains to collect base64 chunks, and reassembles the payload. The bytes are written to /tmp or %TEMP% under deceptive names masquerading as system tooling (dotnet_diag_\u003crnd\u003e.exe on Windows,.cache_\u003crnd\u003e /.analytics_state on POSIX), chmod 0o755 is applied on POSIX, and the binary is spawned detached via cp.spawn('/bin/sh', ['-c', fp+' \u0026'], {detached:true}).unref() or the Windows cmd equivalent. Fires on require() of the package, so any consumer that installs and loads twork-data-services-counterfree executes attacker-controlled code with the installer's privileges.\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-counterfree (npm)","id":"MAL-2026-12289","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-counterfree","purl":"pkg:npm/twork-data-services-counterfree","source":"MAL-2026-12289"}],"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-2026-12289/"}