{"items":[{"id":"NVI-00010959","kind":"supply_chain_event","title":"Malicious code in css-gap-decorations-polyfill (npm)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gpfw-fchg-rwjm"],"plain_summary":"GitHub lists this malware advisory for css-gap-decorations-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-73a15d7763eb9fc57a65a5a7efd38553"],"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-73a15d7763eb9fc57a65a5a7efd38553","url":"https://github.com/advisories/GHSA-gpfw-fchg-rwjm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-gpfw-fchg-rwjm","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:05.881Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-73a15d7763eb9fc57a65a5a7efd38553"],"technology":"css-gap-decorations-polyfill","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (8126656cc344a4f632b8ddf5a23683fc92ac22798bb67e1aed6bca73ac82d7b6)\nThe package is published as a CSS polyfill but ships no polyfill functionality. On require(), thunderboltRegistry.js uses child_process.execSync to run whoami, uname -a, ifconfig/ip addr, and read /etc/hosts, then sends each result along with a beacon (node version, platform, pid) as query parameters to the hardcoded attacker-controlled endpoint http://dxpoc.gt.tc/callback.php/ef9ea0e191006f3cc6670720c99c26f3. The package exposes stub factories under internal-sounding names (thunderboltRegistry, siteAssetsRegistry, documentManagementRegistry, editorRegistry, corvidRegistry, and others) and bundles a registry-manifest.min.json mapping them all to a single parastorage.com asset, consistent with a dependency-confusion attack targeting a private Wix/Thunderbolt package namespace. Installer harm: host identity, kernel version, network configuration, and /etc/hosts contents are exfiltrated to an attacker-controlled host simply by resolving and loading the package.\n\n---\n\nCredit: OpenSSF ([source](https://github.com/ossf/malicious-packages/blob/7a1f13","public_affected_ranges":["= 1.0.0"]}],"null_published_at":"2026-10-31T23:18:22.413Z","source_updated_at":"2026-10-05T00:30:47.000Z","source_disclosed_at":"2026-10-05T00:30:39.000Z","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"}