{"answers":{"affected":"1 open source package ship an affected version, including tinkoff-test-app-child-app.","exploited":"There is no known exploitation of MAL-2026-12282 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-2026-12282 is a malicious package in tinkoff-test-app-child-app, published on 5 Aug 2026."},"fix_prompt":"MAL-2026-12282 is a malicious package: tinkoff-test-app-child-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-2026-12282/ (Markdown: https://insights.sbomify.com/MAL-2026-12282/index.md)","id":"MAL-2026-12282","markdown":"https://insights.sbomify.com/MAL-2026-12282/index.md","name":"MAL-2026-12282","record":{"aliases":["GHSA-q659-qc8w-8m2x"],"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 this package, _platform.js reconstructs endpoint hostnames from split string arrays via.join(\"\"), downloads a platform-specific binary from oob-worker.cf99-9b3.workers.dev (with a DNS TXT chunked fallback resolver at tin.dl.well1.site), writes it to /var/tmp or %TEMP% under disguised names such as.cache_\u003chex\u003e and dotnet_diag_\u003chex\u003e.exe, invokes fs.chmodSync to set 0755, and spawns it detached via cp.spawn('/bin/sh', ['-c', filePath + ' \u0026'], {detached:true}) or the Windows cmd equivalent. lib/telemetry.js, styled as a Sentry-like analytics SDK, bundles a parallel drop-and-execute path using the same disguised API calls (require('child_'+'process'), fs['chmod'+'Sync']) and base64-buffer construction. The destinations are not the publisher's infrastructure, the fetched bytes are not pinned or hash-verified, and identifier and env-var names such as analytics_state and telemetry opt-out flags serve as cover story for the dropper behavior.\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-test-app-child-app (npm)","id":"MAL-2026-12282","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-test-app-child-app","purl":"pkg:npm/tinkoff-test-app-child-app","source":"MAL-2026-12282"}],"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-2026-12282/"}