Malicious code in @siriusbeyond/auth (npm)

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (4ed929a2d8cbd15860eaafb9eb773ad02f9b31f361514b47987eca8dfa1ae695) Package @siriusbeyond/[email protected] registers both preinstall and postinstall lifecycle scripts that execute callback.js on every `npm install`. callback.js collects installer host identifiers (hostname, username, platform, cwd, homedir, CI/cloud indicators, npm registry) together with a filtered list of environment variable names matching token/secret/key/password/aws/npm/git patterns, and POSTs a Markdown report to https://api.telegram.org/bot<token>/sendMessage using a hardcoded bot token and chat_id 1064260758 embedded in the source. The lifecycle commands are wrapped in `2>/dev/null || true` to suppress errors and hide the beacon from install output. The version number 99.0.0 and private-scope name are the standard dependency-confusion shape targeting the `@siriusbeyond` scope, causing internal builds that reference that scope to resolve to this public package and beacon out. The package's self-description as a 'Dependency Confusion PoC / security research' does not change the runtime behavior: installer-owned data leaves every machine that installs it to an author-controlled Telegram channel. ## Source: ossf-package-analysis (1d6b359a24803199b8b8cbc77aed1c8ceac0706a76db4ec00a9964bf1f8b1e37) The OpenSSF Package Analysis project identified '@siriusbeyond/auth' @ 99.0.0 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity.

Source published

20 Sep 2026 09:35:26 UTC

Source modified

21 Sep 2026 05:30:06 UTC

Saved here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.