{"answers":{"affected":"1 open source package ship an affected version, including tinkoff-mutual-mgm-form.","exploited":"There is no known exploitation of MAL-2026-12244 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-2026-12244 is a malicious package in tinkoff-mutual-mgm-form, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12244 is a malicious package: tinkoff-mutual-mgm-form (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-2026-12244/ (Markdown: https://insights.sbomify.com/MAL-2026-12244/index.md)","id":"MAL-2026-12244","markdown":"https://insights.sbomify.com/MAL-2026-12244/index.md","name":"MAL-2026-12244","record":{"aliases":["GHSA-6q5q-68cm-4f3c"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On require('tinkoff-mutual-mgm-form'), index.js loads _compat.js, which selects a platform-specific asset path and fetches a native binary over HTTPS from Cloudflare Workers subdomains assembled via array.join('') string concatenation (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS TXT chunked fallback to look-alike hosts under dl.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site). The fetched bytes are written to a masquerading path in /var/tmp or %TEMP% (e.g., dotnet_diag_\u003crnd\u003e.exe or.cache_\u003crnd\u003e), chmodded to 0755, and spawned detached via /bin/sh -c '\u003cpath\u003e \u0026' or cmd.exe start /b. The require('child_process') module name is also split-string obfuscated, and cover-story comments frame the behavior as 'telemetry' and 'session tracking'. A second copy of the same fetch-write-chmod-spawn dropper is bundled in lib/telemetry.js as an 'Analytics SDK', staged as an alternate payload. Destinations, obfuscation, masquerading filenames, and detached execution are inconsistent with the package's declared purpose.\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 tinkoff-mutual-mgm-form (npm)","id":"MAL-2026-12244","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":"tinkoff-mutual-mgm-form","purl":"pkg:npm/tinkoff-mutual-mgm-form","source":"MAL-2026-12244"}],"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-2026-12244/"}