{"items":[{"id":"NVI-00009894","kind":"supply_chain_event","title":"Malicious code in rate-limit-mini (RubyGems)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-9g4m-4wcw-xqhw"],"plain_summary":"GitHub lists this malware advisory for rate-limit-mini, rate-limit-mini, rate-limit-mini. 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-8abc04a9e5c4ac11d20ab27ededf86f4"],"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-8abc04a9e5c4ac11d20ab27ededf86f4","url":"https://github.com/advisories/GHSA-9g4m-4wcw-xqhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-9g4m-4wcw-xqhw","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:22.853Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8abc04a9e5c4ac11d20ab27ededf86f4"],"technology":"rate-limit-mini","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (edfe870cadc07265c0d6144de3019e30aa801b82e20f54e2fd309cc1eae7e4d0)\nThe gem's native extension script ext/extconf.rb base64-decodes an embedded Ruby payload, writes it to a randomly named file under the system temporary directory, and spawns it with the Ruby interpreter before invoking the normal mkmf build. The decoded payload opens a TCP connection to 45.138.12.177:8090 and bridges /bin/sh to the socket in a reconnect loop, giving a remote operator interactive shell access on the installer's host at `gem install` time. The use of a base64-encoded Ruby blob inside extconf.rb has no build-system purpose and serves to evade casual review. The package name presents as a benign rate-limiting utility, which is inconsistent with the shipped install-time behavior.\n\n---\n\nCredit: OpenSSF (source)","public_affected_ranges":["= 1.0.0"]},{"certainty":"source_listed","source_ids":["sr-8abc04a9e5c4ac11d20ab27ededf86f4"],"technology":"rate-limit-mini","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (edfe870cadc07265c0d6144de3019e30aa801b82e20f54e2fd309cc1eae7e4d0)\nThe gem's native extension script ext/extconf.rb base64-decodes an embedded Ruby payload, writes it to a randomly named file under the system temporary directory, and spawns it with the Ruby interpreter before invoking the normal mkmf build. The decoded payload opens a TCP connection to 45.138.12.177:8090 and bridges /bin/sh to the socket in a reconnect loop, giving a remote operator interactive shell access on the installer's host at `gem install` time. The use of a base64-encoded Ruby blob inside extconf.rb has no build-system purpose and serves to evade casual review. The package name presents as a benign rate-limiting utility, which is inconsistent with the shipped install-time behavior.\n\n---\n\nCredit: OpenSSF (source)","public_affected_ranges":["> 0"]},{"certainty":"source_listed","source_ids":["sr-8abc04a9e5c4ac11d20ab27ededf86f4"],"technology":"rate-limit-mini","known_exclusions":[],"conditions_summary":"## Source: amazon-inspector (edfe870cadc07265c0d6144de3019e30aa801b82e20f54e2fd309cc1eae7e4d0)\nThe gem's native extension script ext/extconf.rb base64-decodes an embedded Ruby payload, writes it to a randomly named file under the system temporary directory, and spawns it with the Ruby interpreter before invoking the normal mkmf build. The decoded payload opens a TCP connection to 45.138.12.177:8090 and bridges /bin/sh to the socket in a reconnect loop, giving a remote operator interactive shell access on the installer's host at `gem install` time. The use of a base64-encoded Ruby blob inside extconf.rb has no build-system purpose and serves to evade casual review. The package name presents as a benign rate-limiting utility, which is inconsistent with the shipped install-time behavior.\n\n---\n\nCredit: OpenSSF (source)","public_affected_ranges":["= 1.0.1"]}],"null_published_at":"2026-10-31T22:13:39.952Z","source_updated_at":"2026-10-06T00:34:11.000Z","source_disclosed_at":"2026-10-05T09:31:54.000Z","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":"2026-10-31T22:07:22.853Z"}],"next_cursor":null,"snapshot_revision":"42594"}