{"id":"MAL-2026-18294","revision":null,"records":[{"revision":"4efc1bdf69f54e3fa1aea91878d09529","observedAt":"2026-10-26T07:21:08.838+00:00","statement":{"source":"osv","id":"MAL-2026-18294","aliases":[],"title":"Malicious code in @capsense/ccx-welcome-page (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (0f63b73ae5e707b0eecee16f97f8ab26b350d135547448fbf6e005ba33303060)\nThe package publishes under the @capsense scope at version 99.99.100 and wires all three npm lifecycle hooks (preinstall, install, postinstall) to run beacon.js. beacon.js collects os.hostname(), os.userInfo(), and os.platform() and sends the installer's hostname, username, and OS to two hardcoded attacker-controlled collectors: a DNS lookup against the Interactsh OAST subdomain dbf2v9d8dg559apcd93guf6i7uxrn5coo.oast.pro and an HTTPS GET to webhook.site/59675304-bec1-4ca0-8409-8d37b65ec116 with the host identity in the query string. The scope+version combination (public @capsense scope, implausibly high 99.99.100) is the canonical dependency-confusion shape, intended to override a private internal @capsense package during resolution and fire the beacon on any internal build that pulls the public version. The self-label as a 'dependency-confusion PoC' does not change the behavior: any installer whose build resolves this package has their host identity shipped to third-party collectors without consent.\n\n## Source: ossf-package-analysis (08a76d2425b34728eb502d47ba660eefd26e944864de58d8022e82c367dd55b2)\nThe OpenSSF Package Analysis project identified '@capsense/ccx-welcome-page' @ 99.99.100 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.\n","state":0,"publishedAt":"2026-10-25T18:19:29+00:00","modifiedAt":"2026-10-26T06:45:16.1056116+00:00","affected":[{"ecosystem":"npm","name":"@capsense/ccx-welcome-page","ranges":[],"versions":["99.99.100","99.99.99"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/@capsense/ccx-welcome-page/v/99.99.99","https://www.npmjs.com/package/@capsense/ccx-welcome-page/v/99.99.100"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-18294","license":"OSV · upstream source license applies","key":"osv:MAL-2026-18294","identifiers":["MAL-2026-18294"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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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-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-26T07:22:44.2990387+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":4764,"expectedIdentifiers":13474},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-26T07:22:41.6495871+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-26T07:22:41.6495871+00:00","lastSuccessAt":"2026-10-26T07:22:41.8348887+00:00","error":null,"lastVerifiedAt":"2026-10-26T07:22:41.8348895+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":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-204a3fb93a00487e8f7f36db01dc851d","complete":true,"records":13413,"lastAttemptAt":"2026-10-26T07:22:42.2996982+00:00","lastSuccessAt":"2026-10-25T16:19:28.681+00:00","error":null,"lastVerifiedAt":"2026-10-25T16:19:28.681+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13474,"expectedIdentifiers":13474},{"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-2375a4e597279abf92e8747e140fe8da9d421877cd49cae3ac69a2cb78469b2c","complete":true,"records":9779,"lastAttemptAt":"2026-10-26T07:22:41.6032893+00:00","lastSuccessAt":"2026-10-24T13:19:53.1346702+00:00","error":null,"lastVerifiedAt":"2026-10-26T07:22:41.6032893+00:00","snapshotPublishedAt":"2026-10-24T03:03:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-16ad89dfea13ab9e9b0108e63a759d63bd4559cc68b58491107d62ee35bbbaf2","complete":true,"records":1965,"lastAttemptAt":"2026-10-26T07:21:02.4710939+00:00","lastSuccessAt":"2026-10-23T16:01:26.4487605+00:00","error":null,"lastVerifiedAt":"2026-10-26T07:21:02.4710939+00:00","snapshotPublishedAt":"2026-10-21T12:18:07+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":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-7da67a15aa6e56a0e3081a7646dc74d537e6ef974afc593c2b1794ed01970648","complete":true,"records":2969,"lastAttemptAt":"2026-10-26T07:22:41.6153558+00:00","lastSuccessAt":"2026-10-24T13:19:59.1145547+00:00","error":null,"lastVerifiedAt":"2026-10-26T07:22:41.6153558+00:00","snapshotPublishedAt":"2026-10-24T08:47:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":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-5a8b097cf1e7add92f12edd4da6073149fa916076fa0c6696eb000c55dcfe336","complete":true,"records":230804,"lastAttemptAt":"2026-10-26T07:22:41.4723388+00:00","lastSuccessAt":"2026-10-26T07:22:40.3231371+00:00","error":null,"lastVerifiedAt":"2026-10-26T07:22:41.4723388+00:00","snapshotPublishedAt":"2026-10-26T06:48:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null}]}