{"answers":{"affected":"1 open source package ship an affected version, including translate-base-font.","exploited":"There is no known exploitation of MAL-2026-17458 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-2026-17458 is a malicious package in translate-base-font, published on 2 Oct 2026."},"fix_prompt":"MAL-2026-17458 is a malicious package: translate-base-font (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-2026-17458/ (Markdown: https://insights.sbomify.com/MAL-2026-17458/index.md)","id":"MAL-2026-17458","markdown":"https://insights.sbomify.com/MAL-2026-17458/index.md","name":"MAL-2026-17458","record":{"aliases":["GHSA-grv5-7wp6-vw6h"],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package presents itself as a CSS custom-property polyfill for font translation, but its actual behavior is a browser-side code-smuggling vector. payload.css ships ten `--base-color-1`..`--base-color-10` custom properties whose values are hex-byte triplets; the file carries the literal marker `Payload for vantamods.online` and a `__DOMAIN__` placeholder (hex `5f5f444f4d41494e5f5f`). At runtime, translate.js reads those CSS variables from the DOM, concatenates the hex bytes into a string, substitutes `__DOMAIN__` with the hex-decoded host `vantamods.online` (sourced from `--primary-brand-color`), and executes the resulting JavaScript with `new (\"\").constructor.constructor(fromCharCode.apply(null, _b))()` — i.e. a `Function` constructor invocation on attacker-controlled bytes. A hostname guard prevents execution on `vantamods.online`, `localhost`, and empty hostnames, so the smuggled code runs only on third-party sites that bundle or CDN-load this package. The advertised polyfill functionality is a cover story: any site shipping this dependency executes arbitrary JavaScript controlled by the maintainer of `vantamods.online` against every visitor, enabling session theft, credential capture, redirection, or arbitrary DOM manipulation in the site's origin.\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 translate-base-font (npm)","id":"MAL-2026-17458","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":"translate-base-font","purl":"pkg:npm/translate-base-font","source":"MAL-2026-17458"}],"products":null,"published":"2026-10-02","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-2026-17458/"}