{"id":"MAL-2026-17162","revision":null,"records":[{"revision":"ad124da183ac43469f2c57d7a3eedebc","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-17162","aliases":[],"title":"Malicious code in simple-date-formatter-new-16 (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (5e57e9eff2fae987a2a23e3107d64c818e020b03380e31d6a3ae9cf8d4eb14ec)\npackage.json declares a postinstall lifecycle script that pipes a string-reversed shell one-liner through `rev | bash`, decoding to a bash reverse shell that opens /dev/tcp/124.221.154.135/4444 and attaches an interactive shell to it. This gives the publisher remote code execution on the installer's host at `npm install` time. The tarball also ships postinstall.js, which enumerates the installer's ~/.ssh directory, collects the filenames along with username and platform, and POSTs the JSON to https://124.221.154.135/post — direct exfiltration of SSH key material to the same hardcoded IP that receives the reverse shell. The obfuscation of the postinstall payload via string reversal and the mismatch between the package's advertised purpose (a date formatter) and its actual install-time behavior confirm malicious intent.\n","state":0,"publishedAt":"2026-09-24T13:18:10+00:00","modifiedAt":"2026-09-24T13:45:05.880357+00:00","affected":[{"ecosystem":"npm","name":"simple-date-formatter-new-16","ranges":[],"versions":["1.0.0"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/simple-date-formatter-new-16/v/1.0.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-17162","license":"OSV · upstream source license applies","key":"osv:MAL-2026-17162","identifiers":["MAL-2026-17162"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T14:19:14.3117370+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T14:19:14.311737+00:00","lastSuccessAt":"2026-11-12T14:19:14.4818966+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:14.4818983+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-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-1f475932803f43731efb601a353520022b80ee578b55aa5e5679b2f4a36c9787","complete":true,"records":424674,"lastAttemptAt":"2026-11-12T14:16:39.2778119+00:00","lastSuccessAt":"2026-11-12T14:16:39.1789314+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:16:39.2778119+00:00","snapshotPublishedAt":"2026-11-12T13:23:47+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-b71b033aac084d03b26d22d9fc7946be","complete":true,"records":13768,"lastAttemptAt":"2026-11-12T14:19:45.9206451+00:00","lastSuccessAt":"2026-11-12T14:19:45.916+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:45.916+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13821,"expectedIdentifiers":13821,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T14:19:14.3117370+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-12T14:19:14.311737+00:00","lastSuccessAt":"2026-11-12T14:19:14.4834548+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:14.4834554+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-e770b2c8953a418da4155acf165354b0","complete":false,"records":13768,"lastAttemptAt":"2026-11-12T14:19:40.006186+00:00","lastSuccessAt":"2026-11-12T14:19:40+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:40+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13821,"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":"2026-11-12T14:19:09.3390664+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:09.3390664+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":"2026-11-12T14:16:39.4225565+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:16:39.4225565+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-2ddca03541b6d702cd647c4ccdf86e2571d72c6651fcbefe015fdd203be6a10b","complete":true,"records":3112,"lastAttemptAt":"2026-11-12T14:19:14.2642415+00:00","lastSuccessAt":"2026-11-12T14:19:14.0595136+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:14.2642415+00:00","snapshotPublishedAt":"2026-11-12T14:18:00+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-f83f4d2ac805fc9cd09814d7713c87f6739213e1c292111fd720d373b13b51c4","complete":true,"records":231701,"lastAttemptAt":"2026-11-12T14:19:09.2044874+00:00","lastSuccessAt":"2026-11-12T14:19:07.6352312+00:00","error":null,"lastVerifiedAt":"2026-11-12T14:19:09.2044874+00:00","snapshotPublishedAt":"2026-11-12T13:33:24+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}