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CVE-2026-92944 (GCVE-0-2026-92944)

Vulnerability from cvelistv5 – Published: 2026-09-17 13:46 – Updated: 2026-09-17 13:46
VLAI
Title
vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector
Summary
vm2 versions 3.10.2 through 3.11.6 contain a sandbox escape vulnerability on Node.js 26 where Promise.prototype.finally() bypasses vm2's wrapper protections due to a stale PromiseThenLookupChain protector in V8 14.6. Attackers can exploit this by creating an async function that returns a Promise with an attacker-controlled constructor Symbol.species, allowing them to reach the host Function constructor and process object for arbitrary code execution.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version CPE status
patriksimek vm2 Affected: 3.10.2 , < 3.11.7 (semver)
Unaffected: 3.11.7 (semver)
guessed Create a notification for this product.
Date Public
2026-08-24 00:00
Credits
YMs0ra
Show details on NVD website
To clipboard 

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              "versionType": "semver"
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          "type": "reporter",
          "value": "YMs0ra"
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      ],
      "datePublic": "2026-08-24T00:00:00.000Z",
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        }
      ],
      "metrics": [
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            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "vulnIntegrityImpact": "HIGH"
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            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
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            "userInteraction": "NONE",
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            "version": "3.1"
          },
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-693",
              "description": "Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T13:46:06.201Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-27g9-p43v-cw3v)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v"
        },
        {
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          "tags": [
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          "url": "https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e"
        },
        {
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          "tags": [
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          "url": "https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd"
        },
        {
          "name": "VulnCheck Advisory: vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector"
        }
      ],
      "title": "vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-92944",
    "datePublished": "2026-09-17T13:46:06.201Z",
    "dateReserved": "2026-09-17T12:43:03.567Z",
    "dateUpdated": "2026-09-17T13:46:06.201Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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