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CVE-2026-47209

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the BaseHandler.set trap in bridge.js (line 1231) ignores the receiver parameter and unconditionally writes to the host target object. Per the Proxy set trap specification, when receiver !== proxy (e.g., when a child object inherits from the proxy via Object.create), the property assignment should create an own property on the receiver, not on the proxy target. The current implementation always calls otherReflectSet(object, k
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:546d4c34d057dab29a6965605add5c18e1512c68657e09e9a4f698e7de32323b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"vm2","vendor":"patriksimek","versions":[{"status":"affected","version":"< 3.11.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dace338b1e3196afcf0d607a4d072c0378a449cf86857c030aabd66c38f3fd34 · sha256:40f488be335df64e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:dace338b1e3196afcf0d607a4d072c0378a449cf86857c030aabd66c38f3fd34 · sha256:40f488be335df64e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-693","description":"CWE-693: Protection Mechanism Failure","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:dace338b1e3196afcf0d607a4d072c0378a449cf86857c030aabd66c38f3fd34 · sha256:40f488be335df64e… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/patriksimek/vm2/commit/26d0318b5e6555be4b187ba05d6cf378ccecfe22","tags":["x_refsource_MISC"],"url":"https://github.com/patriksimek/vm2/commit/26d0318b5e6555be4b187ba05d6cf378ccecfe22"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dace338b1e3196afcf0d607a4d072c0378a449cf86857c030aabd66c38f3fd34 · sha256:40f488be335df64e… · /containers/cna/references/1
{"name":"https://github.com/patriksimek/vm2/releases/tag/v3.11.4","tags":["x_refsource_MISC"],"url":"https://github.com/patriksimek/vm2/releases/tag/v3.11.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dace338b1e3196afcf0d607a4d072c0378a449cf86857c030aabd66c38f3fd34 · sha256:40f488be335df64e… · /containers/cna/references/2
{"name":"https://github.com/patriksimek/vm2/security/advisories/GHSA-c4cf-2hgv-2qv6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-c4cf-2hgv-2qv6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dace338b1e3196afcf0d607a4d072c0378a449cf86857c030aabd66c38f3fd34 · sha256:40f488be335df64e… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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