CVE-2026-92956Disclosure

MEDIUMCVSS 10.0 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch affected systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

vm2 versions 3.10.1 through 3.11.6 contain a sandbox escape reachable from a default `new VM()` sandbox when running on Node.js 26. WebAssembly.compileStreaming and WebAssembly.instantiateStreaming can produce a raw host-realm Promise that rejects with a host-realm error object; by controlling Symbol.species via Promise.prototype.finally, sandbox code receives that raw host error, walks from the host error constructor to the host Function constructor, and recovers the real host `process` object, gaining host Node.js capabilities (e.g. access to host modules such as fs) in the context of the process running the sandbox. No NodeVM, require permission, host object injection, or otherwise unsafe configuration is required. This is a bypass of the fix for GHSA-6j2x-vhqr-qr7q, which removed the JSPI entry points WebAssembly.promising and WebAssembly.Suspending. The issue is fixed in 3.11.7.

4.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-693

Priority

MEDIUM

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Public PoC and exploit tooling are both present
  • Patch or workaround signal is available
  • 6 mentions across 4 observed days
  • Momentum state: stable

What's happening

  • Exploit tool or code specified in 1 signal
  • PoC mentioned or linked in 3 signals
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 6 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 3 mentions (2026-10-15); latest day: 1
  • 6 total mentions across 4 days

Deep dive

Activity timeline6 mentions / 4d
01223Mentions · 2026-09-17: 1Mentions · 2026-10-07: 1Mentions · 2026-10-15: 3Mentions · 2026-10-16: 1PoC Mentioned / Linked · 2026-10-15: 2PoC Mentioned / Linked · 2026-10-16: 1Exploit Tool / Code · 2026-10-15: 1Patch / Workaround · 2026-10-07: 1Technical Details · 2026-09-17: 1Technical Details · 2026-10-07: 1Technical Details · 2026-10-15: 3Technical Details · 2026-10-16: 109-1710-0710-1510-16
Signal classification4 categories
Disclosure
233.3%
PoC
233.3%
Patch
116.7%
Exploit
116.7%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-09-171
Disclosure1
2026-10-071
Patch1
2026-10-153
Disclosure1Exploit1PoC1
2026-10-161
PoC1
Full discourse6 posts
  • ThreatAft@ThreatAft
    Disclosure

    🚨 VM2 SANDBOX — 13 CVEs, 7 × CVSS 10.0 • CVE-2026-92956 — WebAssembly escape (Node.js 26) → https://threataft.com/articles/vm2-sandbox-mass-disclosure-13-cves-cvss-10 #vm2 #NodeJS #CVE #SandboxEscape #PatchNow #CyberSecurity #ThreatIntel

    Post summary

    The tweet announces a mass disclosure of 13 CVEs affecting VM2 Sandbox, including CVE-2026-92956 (WebAssembly escape on Node.js 26) with CVSS 10.0, but provides no explicit PoC, exploit tool, active exploitation claims, or named patch/remediation beyond the #PatchNow hashtag (which does not qualify per analysis rules). The primary intent appears to be vulnerability disclosure.

    0100178
    43 followersView on X
  • ExploitGrid@exploitgrid
    PoC

    💀 CRITICAL Exploits Trending (all CVSS 10) ├ CVE-2026-97229 · GitLab · CI/CD regex compiler RCE · 2 PoCs live ├ CVE-2026-72898 · Metabase · PoC live ├ CVE-2025-32432 · Craft CMS · RCE PoC live └ CVE-2026-92956 · vm2 · PoC live

    Post summary

    A curated list of critical (CVSS 10) CVEs with live Proof of Concept exploits available, covering GitLab RCE, Metabase, Craft CMS, and vm2 vulnerabilities.

    1000060
    405 followersView on X
  • ExploitGrid@exploitgrid
    PoC

    💀 CRITICAL Exploits Trending (all CVSS 10) ├ CVE-2026-97229 · GitLab · CI/CD regex compiler RCE · 2 PoCs live ├ CVE-2026-72898 · Metabase · PoC live ├ CVE-2025-32432 · Craft CMS · RCE PoC live └ CVE-2026-92956 · vm2 · PoC live

    Post summary

    The text highlights several critical CVEs (all CVSS 10) with live Proof of Concept code available, including RCE vulnerabilities in GitLab, Metabase, Craft CMS, and vm2, but does not name specific exploit tools or confirm active in-the-wild exploitation.

    1000072
    406 followersView on X
  • ExploitGrid@exploitgrid
    Exploit

    [EXPLOIT] CVE-2026-92956 [CRITICAL/PoC] CVSS: 10 | Vendor: #patriksimek CVE-2026-92956__vm2__test__20261012 🔗 https://exploitgrid.net/exploits/c8b09b14-23ff-4402-bf53-93832905edf8

    Post summary

    The text announces CVE-2026-92956 (CVSS 10, Critical) with both exploit and PoC labels, linking to exploit details hosted on exploitgrid.net.

    1000043
    406 followersView on X
  • ExploitGrid@exploitgrid
    Disclosure

    ExploitGrid Daily Digest 🚨 Top Exploits: CVE-2025-32432 (CVSS: 10) craftcms CVE-2026-72898 (CVSS: 10) metabase CVE-2026-97229 (CVSS: 10) gitlab CVE-2026-92956 (CVSS: 10) patriksimek CVE-2026-97229 (CVSS: 10) gitlab ..🧵👇

    Post summary

    An ExploitGrid daily digest listing five high-severity CVEs (all CVSS 10) affecting CraftCMS, Metabase, GitLab, and a patriksimek package, providing CVSS scores and product names but no PoC links, named exploit tools, patches, or active exploitation evidence.

    1000089
    404 followersView on X
  • SecAlerts@SecAlertsCo
    Patch

    🔓 vm2 sandbox escape — CVE-2026-92956 hits CVSS 10. Reachable from a default `new VM()` on Node.js 26, no special permissions needed. Full container/host compromise possible. Patch or isolate now. #cybersecurity #nodejs #ciso #vulnerabilities #mssp https://secalerts.co/vulnerability/GHSA-wjwh-qqvp-g4p4?utm_campaign=x https://t.co/FyAtKibpeU

    Post summary

    The tweet discloses a critical vm2 sandbox escape (CVE-2026-92956, CVSS 10) exploitable via default VM instantiation on Node.js 26 and explicitly urges immediate patching or isolation.

    0000098
    893 followersView on X

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