# CVE-2026-88391: Northstar H2 Console unauthenticated remote code execution

Source: https://junglewise.ai/threats/cve-2026-88391-northstar-dromara-northstar-quantitative-trading-platform-9-1-1  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-05. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-88391 · Severity: info · Published 2026-10-05

Northstar is a quantitative trading platform that inadvertently exposes the H2 database console to the network without authentication. An attacker with network access can log in with default credentials and execute arbitrary system commands, potentially compromising the entire trading system and its underlying data.

Vendors: [Dromara](https://junglewise.ai/threats/vendors/dromara).

## Quick answers

**Is CVE-2026-88391 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-88391 being exploited in the wild.

**How severe is CVE-2026-88391?** Informational severity, published 5 October 2026.

**Which products and versions are affected?** Dromara Northstar 9.1.1 and earlier.

**Is there a fix for CVE-2026-88391?** Yes: fixed in <UNKNOWN>. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-88391 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-88391?** Check whether you run Dromara Northstar at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in <UNKNOWN>

## Technical details

The H2 Console is exposed at /h2-console but the application's authentication interceptor only protects /northstar/**, allowing unauthenticated access. The embedded H2 database uses default credentials (sa / empty password). An attacker can create a custom SQL alias via CREATE ALIAS and execute arbitrary system commands through Runtime.getRuntime().exec(), achieving pre-authentication RCE as the process user.

## Affected products

- dromara Northstar 9.1.1 and earlier

## Timeline

- 2026-10-05: disclosed

## References

- [https://github.com/fangtang7/CVE/blob/main/Northstar%20H2/rce.md](https://github.com/fangtang7/CVE/blob/main/Northstar%20H2/rce.md)