CVEs / CVE-2026-48027
CVE-2026-48027: Nx Console Embedded Malicious Code Vulnerability
- Known exploited in the CISA KEV catalog since 27 May 2026
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 1.85% chance of exploitation in the next 30 days, higher than 79% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Nx Console contains an embedded malicious code vulnerability that allowed a malicious version of Nx Console to be published. The compromised extension fetched an obfuscated payload that could harvested credentials from multiple sources on disk and in memory.
Description
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| nrwl nx-console | = 18.95.0 | — |
Exploitation
| In CISA KEV since | 27 May 2026 |
|---|---|
| Due date for US federal agencies | 10 Jun 2026 |
| Used in ransomware campaigns | Known |
| 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. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-506 |
References
- CVE-2026-48027 on NVD
- CVE-2026-48027 in the CISA KEV catalog
- https://github.com/nrwl/nx-console/security/advisories/GHSA-c9j4-9m59-847w (cited by CISA)
- CVE-2026-48027 on OSV
- https://github.com/nrwl/nx-console/issues/3139 Issue Tracking
- https://github.com/nrwl/nx-console/security/advisories/GHSA-c9j4-9m59-847w Mitigation, Vendor Advisory
- https://nx.dev/blog/nx-console-v18-95-0-postmortem#indicators-of-compromise Vendor Advisory
- https://www.stepsecurity.io/blog/nx-console-vs-code-extension-compromised Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-48027 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.