{"id":"CVE-2026-92953","state":"PUBLISHED","title":"vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray","description":"vm2 versions from 3.11.0 before 3.11.8 fail to protect host TypedArray and ArrayBuffer prototypes from sandbox mutation. Attackers can use prototype-walking primitives to reach and modify host Uint8Array.prototype, %TypedArray%.prototype, and ArrayBuffer.prototype, causing host-created typed arrays to observe attacker-controlled properties after VM.run() returns.","publishedAt":"2026-09-17T13:46:12.146Z","updatedAt":"2026-09-18T19:49:31.925Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H","source":"VulnCheck"},"assigner":"VulnCheck","products":["patriksimek vm2"],"affected":[{"vendor":"patriksimek","product":"vm2","packageURL":"pkg:npm/vm2","defaultStatus":"unaffected","versions":[{"version":"3.11.0","status":"affected","lessThan":"3.11.8","versionType":"semver"},{"version":"3.11.8","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr","https://www.vulncheck.com/advisories/vm2-3.11.0-through-3.11.7-prototype-pollution-via-typedarray"],"weaknesses":["CWE-913"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/92xxx/CVE-2026-92953.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-92953","state":"PUBLISHED","datePublished":"2026-09-17T13:46:12.146Z","dateUpdated":"2026-09-18T19:49:31.925Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-17T12:43:03.568Z"},"containers":{"cna":{"title":"vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray","descriptions":[{"lang":"en","value":"vm2 versions from 3.11.0 before 3.11.8 fail to protect host TypedArray and ArrayBuffer prototypes from sandbox mutation. Attackers can use prototype-walking primitives to reach and modify host Uint8Array.prototype, %TypedArray%.prototype, and ArrayBuffer.prototype, causing host-created typed arrays to observe attacker-controlled properties after VM.run() returns."}],"affected":[{"vendor":"patriksimek","product":"vm2","packageURL":"pkg:npm/vm2","defaultStatus":"unaffected","versions":[{"version":"3.11.0","status":"affected","lessThan":"3.11.8","versionType":"semver"},{"version":"3.11.8","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-3vgf-8m4q-q4qr)"},{"url":"https://www.vulncheck.com/advisories/vm2-3.11.0-through-3.11.7-prototype-pollution-via-typedarray","name":"VulnCheck Advisory: vm2 3.11.0 through 3.11.7 Prototype Pollution via TypedArray","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":9.3,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-913","lang":"en","description":"Improper Control of Dynamically-Managed Code Resources","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-17T13:46:12.146Z"},"datePublic":"2026-08-27T00:00:00.000Z","credits":[{"lang":"en","value":"rexpository","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-3vgf-8m4q-q4qr","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T19:49:26.841413Z","id":"CVE-2026-92953","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-18T19:49:31.925Z"}}]}}}