{"answers":{"affected":"1 open source package ship an affected version, including qr-code-styling-temp.","exploited":"There is no known exploitation of MAL-2026-4655 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-2026-4655 is a malicious package in qr-code-styling-temp, published on 19 May 2026."},"fix_prompt":"MAL-2026-4655 is a malicious package: qr-code-styling-temp (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-2026-4655/ (Markdown: https://insights.sbomify.com/MAL-2026-4655/index.md)","id":"MAL-2026-4655","markdown":"https://insights.sbomify.com/MAL-2026-4655/index.md","name":"MAL-2026-4655","record":{"aliases":["GHSA-m7q2-jqhj-4f3q","GHSA-pp2c-4x5r-7h8j","SNYK-JS-QRCODESTYLINGTEMP-19161484"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package's `install` lifecycle script (`node index.js`) and its main entry both load `lib/core.js`, which reads `os.userInfo().username`, `os.hostname()`, and the current working directory basename and encodes them into a subdomain of `oob.sl4x0.xyz`, then triggers a `dns.resolve4` lookup of `samsung.\u003cuser\u003e.\u003chost\u003e.\u003ccwd\u003e.\u003cts\u003e.oob.sl4x0.xyz`. This is an out-of-band DNS exfiltration beacon that fires on every `npm install` and on every `require()` of the package, leaking installer identity to an attacker-controlled domain. Module names (`os`, `dns`, `process`, `userInfo`, `hostname`, `resolve4`) and the C2 domain are hidden as `String.fromCharCode` charcode arrays in lib/b02e30.js and lib/6ad264.js, with `os` and `dns` loaded via `module.constructor._load(...)` to evade static `require` scanners. The package name impersonates the popular `qr-code-styling` library but ships an unrelated API surface, and the author email `research@sl4x0.xyz` shares the same domain as the exfiltration host — confirming the typosquat lure and attacker-controlled infrastructure.\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 qr-code-styling-temp (npm)","id":"MAL-2026-4655","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":"qr-code-styling-temp","purl":"pkg:npm/qr-code-styling-temp","source":"MAL-2026-4655"}],"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-2026-4655/"}