---
title: "CVE-2026-48027: Nx Console Embedded Malicious Code Vulnerability"
url: https://erroneo.us/security/cve/CVE-2026-48027/
description: "CVE-2026-48027 (Nx Nx Console): Exploited in the wild (CISA KEV). Nx Console is the user interface for Nx & Lerna. On 19 May 2026, a malicious version of Nx…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-27
date_modified: 2026-08-04
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-48027"
kev: true
cvss: 9.3
epss: 0.01336
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-48027: Nx Console Embedded Malicious Code Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Nx Nx Console. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-05-27, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-06-10 ; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns .
- EPSS 1.3% , percentile 71: FIRST’s model estimates a 1.3% chance of exploitation activity in the next 30 days, higher than 71% of all scored CVEs (moderate). 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.

## What it is

Nx Console is the user interface for Nx & Lerna. On 19 May 2026, a malicious version of Nx Console, 18.95.0, was published at 12:30 PM UTC and removed soon after at 12:48 PM UTC, leaving it available for ~18 minutes in Visual Studio Marketplace. For OpenVSX, the problem was detected later, and the compromised version was available from 12:33 UTC to 13:09 UTC (~36 minutes). Version 18.100.0 of Nx Console is not compromised and users may remediate by upgrading to that version.

## Affected products (CVE record)

- nrwl nx-console: = 18.95.0

## Severity

- GitHub_M CVSS 4.0: 9.3 `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`

## Exploitation

- CISA KEV: added 2026-05-27; federal due date 2026-06-10. Known ransomware use: Known.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.34% probability of exploitation activity in the next 30 days; percentile 71.

## Sources

- [Listed in CISA KEV notes (github.com)](https://github.com/nrwl/nx-console/security/advisories/GHSA-c9j4-9m59-847w)
- [CVE.org record CVE-2026-48027](https://www.cve.org/CVERecord?id=CVE-2026-48027)
- [NVD entry CVE-2026-48027](https://nvd.nist.gov/vuln/detail/CVE-2026-48027)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48027)
- [github.com](https://github.com/nrwl/nx-console/issues/3139)
- [nx.dev](https://nx.dev/blog/nx-console-v18-95-0-postmortem#indicators-of-compromise)
- [stepsecurity.io](https://www.stepsecurity.io/blog/nx-console-vs-code-extension-compromised)

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Source page: https://erroneo.us/security/cve/CVE-2026-48027/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt