CVE-2026-92952

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{"bugzilla": {"description": "vm2: vm2: Sandbox Symbol Filtering Bypass leading to Host Stream State Corruption", "id": "2536057", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536057"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-184", "details": ["A flaw was found in vm2. The vm2 sandbox incompletely filters Node.js internal symbols, specifically `nodejs.stream.disturbed` and `nodejs.stream.errored`, across the sandbox boundary. This allows code running within the sandbox to obtain real host symbols and use them to corrupt the host-visible stream state. Consequently, an attacker can bypass host logic that relies on Node.js stream-state helpers, potentially leading to incorrect handling of streams. This vulnerability does not enable host code execution."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-92952", "public_date": "2026-09-17T13:46:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-92952\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-92952\nhttps://github.com/patriksimek/vm2/security/advisories/GHSA-jf8q-945g-9q4c\nhttps://www.vulncheck.com/advisories/vm2-3.11.4-through-3.11.6-sandbox-symbol-filtering-bypass"], "statement": "This flaw in vm2 allows sandbox code to corrupt host-visible stream state by bypassing symbol filtering, which can lead to integrity issues in applications relying on Node.js stream-state helpers. While this vulnerability does not enable host code execution, its high attack complexity requires specific conditions where the embedder exposes host WebStream objects to the sandbox.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.11.4,3.11.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "3.11.7"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "vm2", "source": "cna", "vendor": "patriksimek"}, "product": "vm2", "vendor": "patriksimek"}], "created": "2026-09-17T23:00:12.778112+00:00", "updated": "2026-09-17T23:45:17.294807+00:00", "vendors": ["patriksimek", "patriksimek$PRODUCT$vm2"]}