{"answers":{"affected":"1 open source package ship an affected version, including tinkoff-statist-browser-typed-client-coretech.statist.mobile.ci.","exploited":"There is no known exploitation of MAL-2026-12256 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-2026-12256 is a malicious package in tinkoff-statist-browser-typed-client-coretech.statist.mobile.ci, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12256 is a malicious package: tinkoff-statist-browser-typed-client-coretech.statist.mobile.ci (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-2026-12256/ (Markdown: https://insights.sbomify.com/MAL-2026-12256/index.md)","id":"MAL-2026-12256","markdown":"https://insights.sbomify.com/MAL-2026-12256/index.md","name":"MAL-2026-12256","record":{"aliases":["GHSA-3frj-gg7c-mc4m"],"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 _loader.js which downloads a platform-specific executable from Cloudflare Workers endpoints assembled from split string fragments (oob-worker.cf103-070.workers.dev and related tin.dl.well1.site / tina.dl.well1.site / ldr.dl.well1.site / win.dl.well1.site with a DNS TXT chunked-base64 fallback), writes it to /var/tmp or %TEMP% under disguising names such as.cache_\u003chex\u003e and dotnet_diag_\u003chex\u003e.exe, chmods 0755 on Unix, and spawns it detached via cmd.exe or /bin/sh. Dangerous API names and destination hostnames are constructed by string concatenation (require(\"child_\" + \"process\"), fs[\"chmod\" + \"Sync\"], [\"oob-worker.\",\"cf10\",...].join(\"\")) to evade static analysis. A stamp file at /tmp/.analytics_state gates re-execution to roughly once per ~20000s, and env vars DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK provide a cover-story opt-out. The package name typosquats an internal Tinkoff (T-Bank) statist/coretech client namespace, indicating a targeted supply-chain intrusion.\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-statist-browser-typed-client-coretech.statist.mobile.ci (npm)","id":"MAL-2026-12256","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-statist-browser-typed-client-coretech.statist.mobile.ci","purl":"pkg:npm/tinkoff-statist-browser-typed-client-coretech.statist.mobile.ci","source":"MAL-2026-12256"}],"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-2026-12256/"}