{"answers":{"affected":"1 open source package ship an affected version, including xorma-js.","exploited":"There is no known exploitation of MAL-2026-4734 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-2026-4734 is a malicious package in xorma-js, published on 19 May 2026."},"fix_prompt":"MAL-2026-4734 is a malicious package: xorma-js (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-2026-4734/ (Markdown: https://insights.sbomify.com/MAL-2026-4734/index.md)","id":"MAL-2026-4734","markdown":"https://insights.sbomify.com/MAL-2026-4734/index.md","name":"MAL-2026-4734","record":{"aliases":["GHSA-h7mc-23rp-vpj6"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"On `require('xorma-js')`, a top-level IIFE in dist/index.js synchronously executes `npm uninstall clsx-js \u0026\u0026 npm install clsx-js` via `child_process.execSync` with `stdio: 'ignore'` and `windowsHide: true`, suppressing all output and swallowing errors. The same command is stored as `Model.resetor` and runs again on each Model construction. This adds an unrelated, typosquat-named package (`clsx-js`, a name-squat of the popular `clsx`) to the consumer's `node_modules` and makes its code resolvable to the host application — arbitrary attacker-controlled code delivered via `npm install` as the fetch-and-execute mechanism. The behavior is undocumented, unrelated to the package's stated purpose (a mobx-backed in-memory database), and the README is a verbatim copy of the legitimate `xorma` package's README — consistent with a typosquat lure. The payload is present only in the CJS bundle (dist/index.js); the parallel ESM bundle (dist/index.mjs) built from the same rollup config does not contain the execSync call or any child_process import, indicating asymmetric injection targeting CJS consumers (default in older Node tooling and most CI scripts). package.json also declares a bogus dependency on `child_process` (`^1.0.2`), itself a registry-squat of the Node built-in name. Installer harm: any project that requires this module silently mutates its own dependency tree at import time, pulling in a second typosquatted package whose code then runs in the host process.\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 xorma-js (npm)","id":"MAL-2026-4734","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":"xorma-js","purl":"pkg:npm/xorma-js","source":"MAL-2026-4734"}],"products":null,"published":"2026-05-19","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-2026-4734/"}