{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-92957", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-17T12:43:31.527Z", "datePublished": "2026-09-17T13:46:14.875Z", "dateUpdated": "2026-09-26T13:30:01.519Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-26T13:30:01.519Z" }, "datePublic": "2026-08-24T00:00:00.000Z", "title": "vm2 before 3.11.7 NodeVM Builtin Deny-List Bypass via node: Prefix", "descriptions": [ { "lang": "en", "value": "vm2 through 3.11.6 does not normalize `node:`-prefixed builtin specifiers when evaluating user-supplied negative (deny) entries in a NodeVM wildcard require policy. Although NodeVM strips the `node:` prefix during require() resolution, negative wildcard entries are matched by exact string comparison against the canonical builtin names, so a policy such as `new NodeVM({ require: { builtin: ['*', '-node:child_process'] } })` fails to deny the canonical `child_process` module. Sandboxed code can therefore obtain the host `child_process` builtin via `require('child_process')` or `require('node:child_process')`, gaining references to process-spawning APIs such as execSync and spawn, which is equivalent to host command-execution capability for untrusted sandbox code. Fixed in vm2 3.11.7." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Improper Privilege Management", "cweId": "CWE-269", "type": "CWE" } ] } ], "affected": [ { "vendor": "patriksimek", "product": "vm2", "defaultStatus": "unaffected", "packageURL": "pkg:npm/vm2", "versions": [ { "version": "0", "status": "affected", "versionType": "semver", "lessThan": "3.11.7" }, { "version": "3.11.7", "status": "unaffected", "versionType": "semver" } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 9.4, "baseSeverity": "CRITICAL" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL" } } ], "references": [ { "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-8686-vhfx-7r3j", "tags": [ "vendor-advisory" ], "name": "GitHub Security Advisory (GHSA-8686-vhfx-7r3j)" }, { "name": "VulnCheck Advisory: vm2 before 3.11.7 Authentication Bypass via node: Prefix", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/vm2-before-3.11.7-authentication-bypass-via-node-prefix" } ], "credits": [ { "lang": "en", "value": "nasaa0x", "type": "reporter" }, { "lang": "en", "value": "sangnigege", "type": "reporter" }, { "lang": "en", "value": "manus-use", "type": "reporter" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "references": [ { "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-8686-vhfx-7r3j", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-17T17:24:58.866510Z", "id": "CVE-2026-92957", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-17T17:25:19.354Z" } } ] } }