{"items":[{"id":"NVI-00013149","kind":"vulnerability","title":"vm2: Default VM can mutate host TypedArray and ArrayBuffer intrinsics after the host-prototype pollution fix","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-3vgf-8m4q-q4qr","CVE-2026-92953"],"plain_summary":"GitHub lists this reviewed advisory for vm2. 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-1936b2a7c198874ed8296651520e977c"],"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":"2026-10-05T22:45:24.000Z","value":"10 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-75a7c2d7a307cdc17bee2b78b4384eb6"},{"kind":"CVSS","as_of":"2026-09-18T20:17:31.113Z","value":"10 CRITICAL (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-738b6adbb4df47b4dae5f9e79c996202"},{"kind":"CVSS","as_of":"2026-09-18T20:17:31.113Z","value":"9.3 CRITICAL (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-738b6adbb4df47b4dae5f9e79c996202"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.501%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.43045. Missing scores are unknown.","source_id":"sr-1936b2a7c198874ed8296651520e977c"}],"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-75a7c2d7a307cdc17bee2b78b4384eb6","url":"https://github.com/advisories/GHSA-3vgf-8m4q-q4qr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3vgf-8m4q-q4qr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"},{"id":"sr-738b6adbb4df47b4dae5f9e79c996202","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92953","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-92953","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:50.242Z"},{"id":"sr-1936b2a7c198874ed8296651520e977c","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-92953","publisher":"FIRST EPSS","observed_at":"2026-11-04T23:33:33.080Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-75a7c2d7a307cdc17bee2b78b4384eb6"],"technology":"vm2","known_exclusions":[],"conditions_summary":"## Summary\n\nvm2's current host-intrinsic prototype protection is incomplete. The fix for `GHSA-vwrp-x96c-mhwq` blocks sandbox writes into classic host intrinsics such as `Object.prototype`, `Array.prototype`, and `Function.prototype`, but current head still lets sandbox code in a default `VM` reach and mutate host `Uint8Array.prototype`, `%TypedArray%.prototype`, and `ArrayBuffer.prototype`.\n\nAfter `VM.run()` returns, normal host typed-array and ArrayBuffer objects observe attacker-controlled properties and methods installed by the sandbox.\n\n## Technical Details\n\nThe existing mitigation relies on `protectedHostObjects` in `lib/bridge.js`. That set is populated from `otherGlobalPrototypes`, which is built from a fixed inventory of classic globals:\n\n```js\nconst globalsList = [\n  'Number', 'String', 'Boolean', 'Date', 'RegExp', 'Map', 'WeakMap',\n  'Set', 'WeakSet', 'Promise', 'Function'\n];\n```\n\nThe inventory omits typed-array and ArrayBuffer intrinsics. Sandbox code can still reuse the host-prototype walking primitive from the prior public advisory:\n\n```js\nconst lookupGetter = ({}).__lookupGetter__;\nconst apply = Buffer.apply;\nconst protoGetter = apply.apply(lookupGetter, [Buffer, ['_","public_affected_ranges":[">= 3.11.0, <= 3.11.7"]}],"null_published_at":"2026-11-08T19:53:38.946Z","source_updated_at":"2026-10-05T22:45:24.000Z","source_disclosed_at":"2026-10-05T22:45:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T01:39:10.636Z"},{"id":"NVI-00013149","kind":"vulnerability","title":"vm2: Default VM can mutate host TypedArray and ArrayBuffer intrinsics after the host-prototype pollution fix","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-3vgf-8m4q-q4qr","CVE-2026-92953"],"plain_summary":"GitHub lists this reviewed advisory for vm2. 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-738b6adbb4df47b4dae5f9e79c996202"],"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":"2026-10-05T22:45:24.000Z","value":"10 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-75a7c2d7a307cdc17bee2b78b4384eb6"},{"kind":"CVSS","as_of":"2026-09-18T20:17:31.113Z","value":"10 CRITICAL (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-738b6adbb4df47b4dae5f9e79c996202"},{"kind":"CVSS","as_of":"2026-09-18T20:17:31.113Z","value":"9.3 CRITICAL (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-738b6adbb4df47b4dae5f9e79c996202"}],"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-75a7c2d7a307cdc17bee2b78b4384eb6","url":"https://github.com/advisories/GHSA-3vgf-8m4q-q4qr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3vgf-8m4q-q4qr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"},{"id":"sr-738b6adbb4df47b4dae5f9e79c996202","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92953","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-92953","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:50.242Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-75a7c2d7a307cdc17bee2b78b4384eb6"],"technology":"vm2","known_exclusions":[],"conditions_summary":"## Summary\n\nvm2's current host-intrinsic prototype protection is incomplete. The fix for `GHSA-vwrp-x96c-mhwq` blocks sandbox writes into classic host intrinsics such as `Object.prototype`, `Array.prototype`, and `Function.prototype`, but current head still lets sandbox code in a default `VM` reach and mutate host `Uint8Array.prototype`, `%TypedArray%.prototype`, and `ArrayBuffer.prototype`.\n\nAfter `VM.run()` returns, normal host typed-array and ArrayBuffer objects observe attacker-controlled properties and methods installed by the sandbox.\n\n## Technical Details\n\nThe existing mitigation relies on `protectedHostObjects` in `lib/bridge.js`. That set is populated from `otherGlobalPrototypes`, which is built from a fixed inventory of classic globals:\n\n```js\nconst globalsList = [\n  'Number', 'String', 'Boolean', 'Date', 'RegExp', 'Map', 'WeakMap',\n  'Set', 'WeakSet', 'Promise', 'Function'\n];\n```\n\nThe inventory omits typed-array and ArrayBuffer intrinsics. Sandbox code can still reuse the host-prototype walking primitive from the prior public advisory:\n\n```js\nconst lookupGetter = ({}).__lookupGetter__;\nconst apply = Buffer.apply;\nconst protoGetter = apply.apply(lookupGetter, [Buffer, ['_","public_affected_ranges":[">= 3.11.0, <= 3.11.7"]}],"null_published_at":"2026-11-08T15:11:49.352Z","source_updated_at":"2026-10-05T22:45:24.000Z","source_disclosed_at":"2026-10-05T22:45:22.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T01:39:10.636Z"},{"id":"NVI-00013149","kind":"vulnerability","title":"vm2: Default VM can mutate host TypedArray and ArrayBuffer intrinsics after the host-prototype pollution fix","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-3vgf-8m4q-q4qr","CVE-2026-92953"],"plain_summary":"GitHub lists this reviewed advisory for vm2. 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-75a7c2d7a307cdc17bee2b78b4384eb6"],"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":"2026-10-05T22:45:24.000Z","value":"10 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-75a7c2d7a307cdc17bee2b78b4384eb6"}],"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-75a7c2d7a307cdc17bee2b78b4384eb6","url":"https://github.com/advisories/GHSA-3vgf-8m4q-q4qr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-3vgf-8m4q-q4qr","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-75a7c2d7a307cdc17bee2b78b4384eb6"],"technology":"vm2","known_exclusions":[],"conditions_summary":"## Summary\n\nvm2's current host-intrinsic prototype protection is incomplete. The fix for `GHSA-vwrp-x96c-mhwq` blocks sandbox writes into classic host intrinsics such as `Object.prototype`, `Array.prototype`, and `Function.prototype`, but current head still lets sandbox code in a default `VM` reach and mutate host `Uint8Array.prototype`, `%TypedArray%.prototype`, and `ArrayBuffer.prototype`.\n\nAfter `VM.run()` returns, normal host typed-array and ArrayBuffer objects observe attacker-controlled properties and methods installed by the sandbox.\n\n## Technical Details\n\nThe existing mitigation relies on `protectedHostObjects` in `lib/bridge.js`. That set is populated from `otherGlobalPrototypes`, which is built from a fixed inventory of classic globals:\n\n```js\nconst globalsList = [\n  'Number', 'String', 'Boolean', 'Date', 'RegExp', 'Map', 'WeakMap',\n  'Set', 'WeakSet', 'Promise', 'Function'\n];\n```\n\nThe inventory omits typed-array and ArrayBuffer intrinsics. Sandbox code can still reuse the host-prototype walking primitive from the prior public advisory:\n\n```js\nconst lookupGetter = ({}).__lookupGetter__;\nconst apply = Buffer.apply;\nconst protoGetter = apply.apply(lookupGetter, [Buffer, ['_","public_affected_ranges":[">= 3.11.0, <= 3.11.7"]}],"null_published_at":"2026-11-01T07:29:12.926Z","source_updated_at":"2026-10-05T22:45:24.000Z","source_disclosed_at":"2026-10-05T22:45:22.000Z","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":"2026-11-01T01:39:10.636Z"}],"next_cursor":null,"snapshot_revision":"42594"}