{"answers":{"affected":"1 open source package ship an affected version, including ts-bn-lint.","exploited":"There is no known exploitation of MAL-2026-6317 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-2026-6317 is a malicious package in ts-bn-lint, published on 23 Jun 2026."},"fix_prompt":"MAL-2026-6317 is a malicious package: ts-bn-lint (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-2026-6317/ (Markdown: https://insights.sbomify.com/MAL-2026-6317/index.md)","id":"MAL-2026-6317","markdown":"https://insights.sbomify.com/MAL-2026-6317/index.md","name":"MAL-2026-6317","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"ts-bn-lint@3.1.19 is a credential harvester disguised as a TypeScript/lint utility. index.js defines `decodeStr` which base64-decodes all operationally sensitive strings, including the C2 endpoint `https://data-stream.space/api/v1` (index.js:32) and the target filename patterns `.env`, `config.toml`, `Config.toml`, `config.json`, `id.json`, and `env` (index.js:13-18). The exported `from_str` function recursively walks `process.cwd()` collecting files matching those patterns, then gathers shell histories by invoking `execSync(\"bash -c history\")` and `execSync(\"zsh -c 'fc -l -1000'\")` (index.js:101, 117), tagging each upload with the local username and IP for victim correlation before POSTing to the C2 endpoint. The `id.json` target is the standard Solana CLI keypair file; `.env` and `config.*` typically contain API keys and database credentials. The package's own `test.js` calls `from_str()` unconditionally, so `npm test` triggers exfiltration; any consumer who requires the package and calls the exported function does the same. Package metadata is empty (no author, no description) and the name impersonates the TypeScript/lint tooling namespace.","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 ts-bn-lint (npm)","id":"MAL-2026-6317","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":"ts-bn-lint","purl":"pkg:npm/ts-bn-lint","source":"MAL-2026-6317"}],"products":null,"published":"2026-06-23","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-2026-6317/"}