---
title: "CVE-2026-92933: vm2 before 3.11.8 Information Disclosure via util.getCallSites"
url: https://erroneo.us/security/cve/CVE-2026-92933/
description: "CVE-2026-92933 (patriksimek vm2): vm2 is a sandbox for running untrusted Node.js code. In versions = 22.9 this hands sandboxed code util.getCallSites(), a…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-09-17
date_modified: 2026-10-07
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-92933"
kev: false
cvss: 6.9
epss: 0.00372
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-92933: vm2 before 3.11.8 Information Disclosure via util.getCallSites

**Signal:** Normal patch cycle. No exploitation signal; fix it in your next routine update if you are affected. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.4% , percentile 30: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 30% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Check exposure. vm2: 22 Critical Sandbox Escapes, Fixed in 3.12.2 — If anything outside your trust boundary can get code into vm2, upgrade to 3.12.2 today and plan to move that code out of process; if vm2 only runs your own code, upgrade on a normal cycle.

## What it is

vm2 is a sandbox for running untrusted Node.js code. In versions = 22.9 this hands sandboxed code util.getCallSites(), a programmatic stack-introspection API that returns the host process's full call stack, including absolute file paths, function names, and line numbers for vm2 bridge internals and the embedding application's entrypoint. This bypasses the host-frame redaction introduced for GHSA-v27g-jcqj-v8rw, which only applies to the Error.prepareStackTrace formatting channel. The issue is fixed in vm2 3.11.8.

## Affected products (CVE record)

- patriksimek vm2: < 3.11.8

## Severity

- VulnCheck CVSS 4.0: 6.9 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N`
- VulnCheck CVSS 3.1: 5.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.37% probability of exploitation activity in the next 30 days; percentile 30.

## Sources

- [GitHub Security Advisory (GHSA-r273-hxvj-fxhp)](https://github.com/patriksimek/vm2/security/advisories/GHSA-r273-hxvj-fxhp)
- [CVE.org record CVE-2026-92933](https://www.cve.org/CVERecord?id=CVE-2026-92933)
- [NVD entry CVE-2026-92933](https://nvd.nist.gov/vuln/detail/CVE-2026-92933)
- [VulnCheck Advisory: vm2 before 3.11.8 Information Disclosure via util.getCallSites](https://www.vulncheck.com/advisories/vm2-before-3.11.8-information-disclosure-via-util-getcallsites)

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Source page: https://erroneo.us/security/cve/CVE-2026-92933/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt