{"items":[{"id":"NVI-00010860","kind":"supply_chain_event","title":"Malicious code in api-nebula (npm)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jj92-6g5g-gg78"],"plain_summary":"GitHub lists this malware advisory for api-nebula. 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-31abb48f8f3af96077c077ebc7c2bd15"],"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-31abb48f8f3af96077c077ebc7c2bd15","url":"https://github.com/advisories/GHSA-jj92-6g5g-gg78","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-jj92-6g5g-gg78","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T23:13:05.881Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-31abb48f8f3af96077c077ebc7c2bd15"],"technology":"api-nebula","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (b8232ec7756422686c2bce805fc87821e61a5bd9176cdb2fe7c3190fd2b2eae2)\nThe package declares `\"preinstall\": \"node preinstall.cjs\"` in package.json, and preinstall.cjs is a single-line ~187 KB `Function(\"pbeIUC\", \"…\")` invocation implementing a custom PRNG plus string-table decoder (numeric constant table, printable-charset string table `UclPgF`, a Bob-Jenkins-style mixer, and a decoder that reconstructs strings via modular arithmetic against `UclPgF.charCodeAt(...)`). The file contains no readable logic — its entire payload is an opaque blob that is decoded and handed to the JS engine during `npm install`. String fragments visible pre-decoding (e.g. `F.kI`, `zehSPTc@y.Ge`, `vCpP.BB/.i+gUAKa`) are placeholder-shaped and only resolve to real hosts/commands after runtime decoding, so the actual install-time behavior and any network destinations are hidden from static inspection. The wrapper module (nebula.js) and package.json declare no native build step, no compilation, and no other legitimate reason for a 187 KB obfuscated preinstall script. This is the canonical obfuscated npm preinstall dropper shape: arbitrary attacker-authored code executes on every instal","public_affected_ranges":["= 1.0.0"]}],"null_published_at":"2026-10-31T23:18:22.402Z","source_updated_at":"2026-10-05T06:30:39.000Z","source_disclosed_at":"2026-10-05T06:30:30.000Z","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"}