{"items":[{"id":"NVI-00015051","kind":"vulnerability","title":"jsii-diff: Command Injection via npm: package argument","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-wcx4-wpfv-mc5c","CVE-2026-15895"],"plain_summary":"GitHub lists this reviewed advisory for jsii-diff. 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-120cb75d7020043a95c5de0fe3aada97"],"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":[{"kind":"CVSS","as_of":"2026-08-07T18:15:49.000Z","value":"7.8 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-120cb75d7020043a95c5de0fe3aada97"}],"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-120cb75d7020043a95c5de0fe3aada97","url":"https://github.com/advisories/GHSA-wcx4-wpfv-mc5c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wcx4-wpfv-mc5c","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T02:28:46.523Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-120cb75d7020043a95c5de0fe3aada97"],"technology":"jsii-diff","known_exclusions":[],"conditions_summary":"## Summary\n\njsii-diff is a command line tool to compare the API differences between two jsii assemblies, and report errors if there are backwards-incompatible changes to the API. An issue exists where specially formatted command line arguments can be used to execute shell commands via this tool.\n\n## Impact\njsii-diff supports downloading packages to compare directly from NPM, so that you can compare a proposed candidate version of your jsii package with an already-published version, by passing an argument that looks like `npm:`. For example:\n\n```\njsii-diff npm:my-package@latest .\n```\n\nBy injecting a `;` into the `package-specifier` part of that command, jsii-diff can be tricked into running shell commands. For example:\n\n```\njsii-diff \"npm:lodash; touch /tmp/123\" .\n```\n\nThis allows anyone that can control the command-line arguments to jsii-diff to run arbitrary commands with the same permissions as the jsii-diff command itself.\n\n## Patches\nThis issue has been addressed in jsii-diff version 1.131.0. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.\n\n## Workarounds\nIf you are unable to upd","public_affected_ranges":["< 1.131.0"]}],"null_published_at":"2026-11-03T10:03:26.540Z","source_updated_at":"2026-08-07T18:15:49.000Z","source_disclosed_at":"2026-08-07T18:15:47.000Z","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":"2026-11-03T02:28:46.523Z"}],"next_cursor":null,"snapshot_revision":"42594"}