{"items":[{"id":"NVI-00011942","kind":"vulnerability","title":"vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package","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-c48m-32m9-vx93","CVE-2026-92951"],"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-35f947daf3bd3650ef70355540316fb5"],"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":"2026-10-08T13:40:33.000Z","value":"9.9 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6768d7dd555048a9aa9cd88cb6169f3c"},{"kind":"CVSS","as_of":"2026-09-17T20:18:59.610Z","value":"9.9 CRITICAL (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-26f8ef3a250aa9cd2fdb1d487a2eb6b7"},{"kind":"CVSS","as_of":"2026-09-17T20:18:59.610Z","value":"9.4 CRITICAL (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-26f8ef3a250aa9cd2fdb1d487a2eb6b7"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.468%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40499. Missing scores are unknown.","source_id":"sr-35f947daf3bd3650ef70355540316fb5"}],"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-6768d7dd555048a9aa9cd88cb6169f3c","url":"https://github.com/advisories/GHSA-c48m-32m9-vx93","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c48m-32m9-vx93","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:38.867Z"},{"id":"sr-26f8ef3a250aa9cd2fdb1d487a2eb6b7","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92951","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-92951","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:50.242Z"},{"id":"sr-35f947daf3bd3650ef70355540316fb5","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-2026-92951","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.089Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6768d7dd555048a9aa9cd88cb6169f3c"],"technology":"vm2","known_exclusions":[],"conditions_summary":"### Summary\n\nvm2 is a sandbox library for isolating and executing untrusted JavaScript code inside a Node.js process. It can restrict access to built-in modules and external packages.\n\nWhen `NodeVM` enables an `external` allowlist together with a custom `resolve` callback, vm2 checks the requested package name with a non-exact match. For example, if the allowlist only permits `left-pad`, an attacker can still bypass the check with a colliding package name such as `evil-left-pad`, because it contains the allowlisted name.\n\nIf the colliding package already exists in a host path resolvable by the custom resolver, or if the target application's custom resolver / dependency-management workflow downloads the package and places it in a resolvable path, vm2 loads and executes that package in the host context. This lets sandboxed code bypass the module allowlist and may further lead to host code execution.\n\n### Details\n\n`NodeVM` supports `require.external` to configure which external npm packages sandboxed code may load. It also supports a custom resolver through `require.resolve`. This combination is commonly used in business plugin systems, user-script platforms, or sandbox execution envi","public_affected_ranges":["<= 3.11.6"]}],"null_published_at":"2026-11-04T10:04:35.922Z","source_updated_at":"2026-10-08T13:40:33.000Z","source_disclosed_at":"2026-10-01T15:37:19.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T00:58:38.867Z"},{"id":"NVI-00011942","kind":"vulnerability","title":"vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c48m-32m9-vx93","CVE-2026-92951"],"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-35f947daf3bd3650ef70355540316fb5"],"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":"2026-10-08T13:40:33.000Z","value":"9.9 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6768d7dd555048a9aa9cd88cb6169f3c"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.468%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.40499. Missing scores are unknown.","source_id":"sr-35f947daf3bd3650ef70355540316fb5"}],"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-6768d7dd555048a9aa9cd88cb6169f3c","url":"https://github.com/advisories/GHSA-c48m-32m9-vx93","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c48m-32m9-vx93","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:38.867Z"},{"id":"sr-35f947daf3bd3650ef70355540316fb5","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-2026-92951","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.089Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6768d7dd555048a9aa9cd88cb6169f3c"],"technology":"vm2","known_exclusions":[],"conditions_summary":"### Summary\n\nvm2 is a sandbox library for isolating and executing untrusted JavaScript code inside a Node.js process. It can restrict access to built-in modules and external packages.\n\nWhen `NodeVM` enables an `external` allowlist together with a custom `resolve` callback, vm2 checks the requested package name with a non-exact match. For example, if the allowlist only permits `left-pad`, an attacker can still bypass the check with a colliding package name such as `evil-left-pad`, because it contains the allowlisted name.\n\nIf the colliding package already exists in a host path resolvable by the custom resolver, or if the target application's custom resolver / dependency-management workflow downloads the package and places it in a resolvable path, vm2 loads and executes that package in the host context. This lets sandboxed code bypass the module allowlist and may further lead to host code execution.\n\n### Details\n\n`NodeVM` supports `require.external` to configure which external npm packages sandboxed code may load. It also supports a custom resolver through `require.resolve`. This combination is commonly used in business plugin systems, user-script platforms, or sandbox execution envi","public_affected_ranges":["<= 3.11.6"]}],"null_published_at":"2026-11-01T14:34:14.119Z","source_updated_at":"2026-10-08T13:40:33.000Z","source_disclosed_at":"2026-10-01T15:37:19.000Z","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":"2026-11-01T00:58:38.867Z"},{"id":"NVI-00011942","kind":"vulnerability","title":"vm2 Custom Module Resolver Can Bypass the External Package Allowlist by Loading a Colliding Host Package","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-c48m-32m9-vx93","CVE-2026-92951"],"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-6768d7dd555048a9aa9cd88cb6169f3c"],"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":"2026-10-08T13:40:33.000Z","value":"9.9 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-6768d7dd555048a9aa9cd88cb6169f3c"}],"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-6768d7dd555048a9aa9cd88cb6169f3c","url":"https://github.com/advisories/GHSA-c48m-32m9-vx93","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-c48m-32m9-vx93","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:38.867Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-6768d7dd555048a9aa9cd88cb6169f3c"],"technology":"vm2","known_exclusions":[],"conditions_summary":"### Summary\n\nvm2 is a sandbox library for isolating and executing untrusted JavaScript code inside a Node.js process. It can restrict access to built-in modules and external packages.\n\nWhen `NodeVM` enables an `external` allowlist together with a custom `resolve` callback, vm2 checks the requested package name with a non-exact match. For example, if the allowlist only permits `left-pad`, an attacker can still bypass the check with a colliding package name such as `evil-left-pad`, because it contains the allowlisted name.\n\nIf the colliding package already exists in a host path resolvable by the custom resolver, or if the target application's custom resolver / dependency-management workflow downloads the package and places it in a resolvable path, vm2 loads and executes that package in the host context. This lets sandboxed code bypass the module allowlist and may further lead to host code execution.\n\n### Details\n\n`NodeVM` supports `require.external` to configure which external npm packages sandboxed code may load. It also supports a custom resolver through `require.resolve`. This combination is commonly used in business plugin systems, user-script platforms, or sandbox execution envi","public_affected_ranges":["<= 3.11.6"]}],"null_published_at":"2026-11-01T01:03:56.617Z","source_updated_at":"2026-10-08T13:40:33.000Z","source_disclosed_at":"2026-10-01T15:37:19.000Z","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":"2026-11-01T00:58:38.867Z"}],"next_cursor":null,"snapshot_revision":"42594"}