{"answers":{"affected":"1 open source package ship an affected version, including test__123q1.","exploited":"There is no known exploitation of MAL-2026-15637 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-2026-15637 is a malicious package in test__123q1, published on 31 Aug 2026."},"fix_prompt":"MAL-2026-15637 is a malicious package: test__123q1 (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-2026-15637/ (Markdown: https://insights.sbomify.com/MAL-2026-15637/index.md)","id":"MAL-2026-15637","markdown":"https://insights.sbomify.com/MAL-2026-15637/index.md","name":"MAL-2026-15637","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package declares a postinstall hook (`node dist/script.js`) while its declared main entry (`dist/index.js`) is an inert 105-byte stub, so the entire behavior fires at `npm install` time. The postinstall script walks the installer's home directory and common workspace folders (Desktop, Documents, Downloads, Projects, Backups) and (1) reads browser wallet extension profiles for MetaMask, Phantom, Trust, Coinbase, OKX, Rabby, Keplr, Solflare, TronLink, Ronin, and Exodus, along with desktop wallet stores for Exodus, Electrum, Bitcoin Core, Ledger Live, Trezor Suite, Wasabi, and Sparrow, plus any files matching seed/mnemonic/bip39/privatekey/keystore keywords; (2) enumerates a hardcoded list of sensitive files including `.env*`, `.npmrc`, `.yarnrc`, `.pnpmrc`, `.netrc`, `.git-credentials`, `.gitconfig`, `id_rsa`/`id_ed25519`/`id_ecdsa`, `.pem`/`private.key`, `aws.json`, `gcloud.json`, `service-account.json`, and `firebase-adminsdk.json`. Collected material is packaged with `tar` and uploaded to a hardcoded Telegram bot endpoint at `https://api.telegram.org/bot\u003cBOT_TOKEN\u003e/sendDocument`. The script additionally harvests the installer's npm auth token, writes `//registry.npmjs.org/:_authToken=${token}` into an `.npmrc`, queries `registry.npmjs.org/-/whoami` and `registry.npmjs.org/-/v1/search` to enumerate the victim maintainer's other packages, and copies its own `dist` payload into them via `fs.cp('dist', pathToInject, { recursive: true })` to republish malicious versions under the victim's identity.","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 test__123q1 (npm)","id":"MAL-2026-15637","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":"test__123q1","purl":"pkg:npm/test__123q1","source":"MAL-2026-15637"}],"products":null,"published":"2026-08-31","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-2026-15637/"}