Vulnerability-Lookup

GHSA-HWR5-CM8V-C76Q

Vulnerability from github – Published: 2026-09-17 15:32 – Updated: 2026-10-01 15:27

Withdrawn 2026-10-01

Summary

Duplicate Advisory: vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-27g9-p43v-cw3v. This link is maintained to preserve external references.

Original Description

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

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "vm2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.10.2"
            },
            {
              "last_affected": "3.11.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-693"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-01T15:27:57Z",
    "nvd_published_at": "2026-09-17T14:17:59Z",
    "severity": "CRITICAL"
  },
  "details": "## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of\u00a0GHSA-27g9-p43v-cw3v. This link is maintained to preserve external references.\n\n## Original Description\nvm2 versions 3.10.2 through 3.11.6 contain a sandbox escape vulnerability on Node.js 26 where Promise.prototype.finally() bypasses vm2\u0027s 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.",
  "id": "GHSA-hwr5-cm8v-c76q",
  "modified": "2026-10-01T15:27:57Z",
  "published": "2026-09-17T15:32:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92944"
    },
    {
      "type": "WEB",
      "url": "https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Duplicate Advisory: vm2 sandbox escape on Node.js 26 through a stale PromiseThenLookupChain protector",
  "withdrawn": "2026-10-01T15:27:57Z"
}

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

Vulnerability from cvelistv5 – Published: 2026-09-17 13:46 – Updated: 2026-09-19 02:31

Title

vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector

Summary

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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-19 02:30 UTC

CWE

CWE-693 - Protection Mechanism Failure

Assigner

VulnCheck CNA under the mitre root

CNA scorecard B 84/100 over 5266 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/patriksimek/vm2/security/advis…	vendor-advisory
https://github.com/patriksimek/vm2/commit/7b26e81…	patch
https://github.com/patriksimek/vm2/commit/4635ddd…	patch
https://www.vulncheck.com/advisories/vm2-3.10.2-t…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
patriksimek	vm2	Affected: 3.10.2 , < 3.11.7 (semver) Unaffected: 3.11.7 (semver)

Date Public

2026-08-24 00:00

Credits

YMs0ra

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-92944",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-19T02:30:37.300948Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-19T02:31:01.016Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/patriksimek/vm2/security/advisories/GHSA-27g9-p43v-cw3v"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/vm2",
          "product": "vm2",
          "vendor": "patriksimek",
          "versions": [
            {
              "lessThan": "3.11.7",
              "status": "affected",
              "version": "3.10.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "3.11.7",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "YMs0ra"
        }
      ],
      "datePublic": "2026-08-24T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-693",
              "description": "Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
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        }
      ],
      "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"
        },
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
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          "url": "https://github.com/patriksimek/vm2/commit/7b26e81087ec88c287d9a4812f969d412f32774e"
        },
        {
          "name": "Patch Commit",
          "tags": [
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          "url": "https://github.com/patriksimek/vm2/commit/4635ddd85839461c8ad791990023a477efefe7bd"
        },
        {
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          "tags": [
            "third-party-advisory"
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          "url": "https://www.vulncheck.com/advisories/vm2-3.10.2-through-3.11.6-sandbox-escape-via-promise-protector"
        }
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      "title": "vm2 3.10.2 through 3.11.6 Sandbox Escape via Promise Protector",
      "x_generator": {
        "engine": "vulncheck-endgame"
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  },
  "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": "2026-09-19T02:31:01.016Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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