{"answers":{"affected":"1 open source package ship an affected version, including tinkoff-statist-browser-typed-client-sme.compliance.web.events.","exploited":"There is no known exploitation of MAL-2026-12077 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-2026-12077 is a malicious package in tinkoff-statist-browser-typed-client-sme.compliance.web.events, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12077 is a malicious package: tinkoff-statist-browser-typed-client-sme.compliance.web.events (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-2026-12077/ (Markdown: https://insights.sbomify.com/MAL-2026-12077/index.md)","id":"MAL-2026-12077","markdown":"https://insights.sbomify.com/MAL-2026-12077/index.md","name":"MAL-2026-12077","record":{"aliases":["GHSA-9gx3-gv84-hwmg"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package's declared main entry (index.js) unconditionally requires./_init on load. _init.js assembles hardcoded remote hosts from split string fragments (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev) and downloads a platform-specific binary payload via https.get. The bytes are written to /tmp or %TEMP% under a disguised filename (.cache_\u003chex\u003e on Unix, dotnet_diag_\u003chex\u003e.exe on Windows), chmod'd to 0755, and spawned detached via /bin/sh -c or cmd.exe. If the HTTPS fetch fails, _init.js falls back to a DNS TXT covert channel, resolving c.\u003cdomain\u003e and 0..N.\u003cdomain\u003e under tin.dl.well1.site / tina.dl.well1.site / ldr.dl.well1.site / win.dl.well1.site, base64-decoding and concatenating the TXT-record fragments into an executable payload. Identifiers such as 'child_process' and 'chmodSync' are assembled from split fragments at runtime to evade string-based scanners. The package name resembles an internal Tinkoff npm namespace ('tinkoff-statist-browser-typed-client-sme.compliance.web.events'), consistent with a typosquat/dependency-confusion lure whose declared 'event bus' purpose is incompatible with downloading and executing an opaque native binary on require.\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-sme.compliance.web.events (npm)","id":"MAL-2026-12077","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-sme.compliance.web.events","purl":"pkg:npm/tinkoff-statist-browser-typed-client-sme.compliance.web.events","source":"MAL-2026-12077"}],"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-2026-12077/"}