{"answers":{"affected":"1 open source package ship an affected version, including buffer-wrap-67d7.","exploited":"There is no known exploitation of MAL-2026-6348 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-2026-6348 is a malicious package in buffer-wrap-67d7, published on 23 Jun 2026."},"fix_prompt":"MAL-2026-6348 is a malicious package: buffer-wrap-67d7 (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-2026-6348/ (Markdown: https://insights.sbomify.com/MAL-2026-6348/index.md)","id":"MAL-2026-6348","markdown":"https://insights.sbomify.com/MAL-2026-6348/index.md","name":"MAL-2026-6348","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 (`\"postinstall\": \"node run.js\"`) that executes run.js automatically on `npm install`. run.js imports `os`, `fs`, `http`, `https`, and `child_process`, and collects host and user identity signals including `os.hostname()`, `os.userInfo()`, `os.platform()`, `process.env.USER`, and `process.cwd()`, alongside filesystem reads (`fs.existsSync`, `fs.readFileSync`). Collected data is base64-encoded (`Buffer.from(...).toString('base64')`) and POSTed out via http/https calls (multiple POST sites at run.js lines 131, 339, 346). The composition — automatic lifecycle trigger, system/user reconnaissance, base64 packaging, and outbound POSTs — is the canonical install-time exfiltration shape and produces direct attacker benefit (host fingerprinting and credential-adjacent data leaving the installer's machine).","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 buffer-wrap-67d7 (npm)","id":"MAL-2026-6348","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":"buffer-wrap-67d7","purl":"pkg:npm/buffer-wrap-67d7","source":"MAL-2026-6348"}],"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-2026-6348/"}