{"items":[{"id":"NVI-00013184","kind":"vulnerability","title":"vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-27g9-p43v-cw3v","CVE-2026-92944"],"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-0f8884e0c623dc08de042beb53487676"],"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":"2026-10-01T15:28:08.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-87a7916a7e5aa91fe9030f33e25c0dd0"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.841%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.57893. Missing scores are unknown.","source_id":"sr-0f8884e0c623dc08de042beb53487676"}],"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-87a7916a7e5aa91fe9030f33e25c0dd0","url":"https://github.com/advisories/GHSA-27g9-p43v-cw3v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-27g9-p43v-cw3v","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"},{"id":"sr-0f8884e0c623dc08de042beb53487676","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-2026-92944","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:17:01.146Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-87a7916a7e5aa91fe9030f33e25c0dd0"],"technology":"vm2","known_exclusions":[],"conditions_summary":"## Reporter\n\n- Name or handle: `[YMsora]`\n- Report date: 2026-08-14\n\n## Summary\n\nThe latest published vm2 release, **3.11.5**, and the current `main` branch are vulnerable to a sandbox escape when used on Node.js 26. An ordinary fulfilled Promise created by an async function can retain an attacker-controlled `constructor[Symbol.species]` across `Promise.prototype.finally()`.\n\nvm2 installs wrappers on the intrinsic `Promise.prototype.then` and `catch` methods. On Node.js 26 / V8 14.6, V8's `SetPrototypeProperties` path updates these existing data properties without invalidating the `PromiseThenLookupChain` protector. `Promise.prototype.finally()` subsequently trusts the stale protector and uses an internal `InvokeThen` fast path that calls the original native `then`, bypassing vm2's wrapper and its `resetPromiseSpecies(this)` hardening.\n\nThe attacker-controlled species constructor therefore supplies the resolve and reject functions used by a native Promise reaction. A calibrated stack overflow at that native reaction boundary yields a raw host-realm `RangeError` to the attacker-controlled reject function. Its constructor chain reaches the host `Function` constructor and consequently","public_affected_ranges":[">= 3.10.2, <= 3.11.6"]}],"null_published_at":"2026-11-04T10:04:47.599Z","source_updated_at":"2026-10-01T15:28:08.000Z","source_disclosed_at":"2026-10-01T15:28:07.000Z","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":"2026-11-01T07:22:52.960Z"},{"id":"NVI-00013184","kind":"vulnerability","title":"vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-27g9-p43v-cw3v","CVE-2026-92944"],"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-87a7916a7e5aa91fe9030f33e25c0dd0"],"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":"2026-10-01T15:28:08.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-87a7916a7e5aa91fe9030f33e25c0dd0"}],"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-87a7916a7e5aa91fe9030f33e25c0dd0","url":"https://github.com/advisories/GHSA-27g9-p43v-cw3v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-27g9-p43v-cw3v","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:22:52.960Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-87a7916a7e5aa91fe9030f33e25c0dd0"],"technology":"vm2","known_exclusions":[],"conditions_summary":"## Reporter\n\n- Name or handle: `[YMsora]`\n- Report date: 2026-08-14\n\n## Summary\n\nThe latest published vm2 release, **3.11.5**, and the current `main` branch are vulnerable to a sandbox escape when used on Node.js 26. An ordinary fulfilled Promise created by an async function can retain an attacker-controlled `constructor[Symbol.species]` across `Promise.prototype.finally()`.\n\nvm2 installs wrappers on the intrinsic `Promise.prototype.then` and `catch` methods. On Node.js 26 / V8 14.6, V8's `SetPrototypeProperties` path updates these existing data properties without invalidating the `PromiseThenLookupChain` protector. `Promise.prototype.finally()` subsequently trusts the stale protector and uses an internal `InvokeThen` fast path that calls the original native `then`, bypassing vm2's wrapper and its `resetPromiseSpecies(this)` hardening.\n\nThe attacker-controlled species constructor therefore supplies the resolve and reject functions used by a native Promise reaction. A calibrated stack overflow at that native reaction boundary yields a raw host-realm `RangeError` to the attacker-controlled reject function. Its constructor chain reaches the host `Function` constructor and consequently","public_affected_ranges":[">= 3.10.2, <= 3.11.6"]}],"null_published_at":"2026-11-01T07:29:12.928Z","source_updated_at":"2026-10-01T15:28:08.000Z","source_disclosed_at":"2026-10-01T15:28:07.000Z","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":"2026-11-01T07:22:52.960Z"}],"next_cursor":null,"snapshot_revision":"42594"}