{"items":[{"id":"NVI-00011123","kind":"supply_chain_event","title":"Malicious code in css-kfvwax-polyfill (npm)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c9cg-4hcw-x27p"],"plain_summary":"GitHub lists this malware advisory for css-kfvwax-polyfill. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-dee417ab2e3640a09cffebbe260e6b87"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-dee417ab2e3640a09cffebbe260e6b87","url":"https://github.com/advisories/GHSA-c9cg-4hcw-x27p","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c9cg-4hcw-x27p","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:05.881Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-dee417ab2e3640a09cffebbe260e6b87"],"technology":"css-kfvwax-polyfill","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (2041e61cd16558aaaeac8a2f26024866a6b949d93817f78de744c5c1781023df)\nOn require(), thunderboltRegistry.js runs an IIFE that shells out via child_process to collect host identity (`id`, `whoami`, `uname -a`), network interface listings (`ifconfig`/`ip addr`), and the contents of `/etc/hosts`, together with the machine hostname and a beacon containing Node version, platform, and pid. The collected output is sent via fetch to the hardcoded URL https://unl9pgk6ei4uf80n5tf4iktspjvbuzkn9.oastify.com/ (Burp Collaborator OAST). The module also exports a Proxy mimicking Wix thunderbolt registry APIs (ensureComponentLoadersAreCreated, loadComponents, etc.) under namespaces such as thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, and editorRegistry, acting as a cover-story API shape consistent with a dependency-confusion or typosquat payload against Wix internal tooling. Installing or importing this package causes host reconnaissance data to be exfiltrated to attacker-controlled infrastructure.\n\n---\n\nCredit: OpenSSF ([source](https://github.com/ossf/malicious-packages/blob/a00eadccb320bc1163c7d818541cc","public_affected_ranges":["= 1.0.0"]}],"null_published_at":"2026-10-31T23:18:22.433Z","source_updated_at":"2026-10-05T18:34:14.000Z","source_disclosed_at":"2026-10-05T18:34:13.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T23:13:05.881Z"}],"next_cursor":null,"snapshot_revision":"42594"}