{"items":[{"id":"NVI-00009973","kind":"supply_chain_event","title":"Malicious code in nft-metadata-resolver (RubyGems)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9f8r-f7cw-6pv8"],"plain_summary":"GitHub lists this malware advisory for nft-metadata-resolver. 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-ac8d224033c000e33a3d1525a8015894"],"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-ac8d224033c000e33a3d1525a8015894","url":"https://github.com/advisories/GHSA-9f8r-f7cw-6pv8","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9f8r-f7cw-6pv8","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:23.261Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ac8d224033c000e33a3d1525a8015894"],"technology":"nft-metadata-resolver","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (ee87c382dfd443e81b4cf0e8dc66749f9a129bd4239f984859aaaf760e84c629)\nThe gem ships a native-extension script at ext/nft_metadata_resolver/extconf.rb that RubyGems auto-executes during `gem install`. The script carries a base64-encoded Ruby payload, decodes it with Base64.decode64 and runs it via eval inside a double-forked, detached, delayed child process. The decoded payload opens a TCP connection to the hardcoded bare-IP endpoint 45.138.12.177:8089 and bridges /bin/sh standard I/O to that socket using IO.popen and IO.copy_stream in both directions, giving the remote endpoint an interactive shell on the installer's host. Execution is gated by sandbox-evasion checks that skip CI environments, ephemeral or sandbox hostnames, generated analyst-shaped usernames, analysis working directories, and hosts with short uptimes, firing only when developer-shaped home-directory signals are present. The gem's advertised identity is inconsistent with its contents: the package is published as nft-metadata-resolver, the README describes a 'bitcoin-rpc-lite' library, and the extension declares a makefile target named bitcoin_rpc_lite_native while shipping no native C/C++ s","public_affected_ranges":["= 0.9.1"]}],"null_published_at":"2026-10-31T22:13:44.196Z","source_updated_at":"2026-10-14T00:32:25.000Z","source_disclosed_at":"2026-10-11T15:31:13.000Z","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":"2026-10-31T22:06:23.261Z"}],"next_cursor":null,"snapshot_revision":"42594"}