# CVE-2026-97891: Eclipse Kura Web Console session exhaustion denial of service

Source: https://junglewise.ai/threats/cve-2026-97891-in-eclipse-kura-version-5-0-0-to-5-6-2-the-web-console-allocates  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-97891 · Severity: info · Published 2026-11-10

Eclipse Kura is an IoT gateway platform that runs on edge devices. The Web Console's authentication endpoints allocate a new HTTP session for every request without limits, allowing an unauthenticated attacker to crash the entire Kura process by exhausting server memory. This causes complete downtime of the gateway and any services it provides.

Technologies: [Eclipse Kura](https://junglewise.ai/threats/technologies/eclipse-kura). Vendors: [Eclipse](https://junglewise.ai/threats/vendors/eclipse).

## Quick answers

**Is CVE-2026-97891 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-97891 being exploited in the wild.

**How severe is CVE-2026-97891?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** Eclipse Kura 5.0.0 to 5.6.2.

**Is there a fix for CVE-2026-97891?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-97891 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-97891?** Check whether you run Eclipse Kura 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.

## Technical details

The vulnerability exists in the Web Console's authentication endpoints (/admin/auth, /admin/login/password, /admin/login/cert) which allocate HTTP sessions before validating HTTP methods, parsing requests, or checking credentials. An unauthenticated attacker can send rapid requests without honoring session cookies to trigger unbounded session allocation, causing JVM heap exhaustion (CWE-770, CWE-400). This is a network-accessible denial of service requiring no authentication or user interaction.

## Affected products

- Eclipse Kura 5.0.0 to 5.6.2

## Timeline

- 2026-11-10: disclosed

## References

- [https://github.com/eclipse-kura/kura/security/advisories/GHSA-4pwp-99h8-c44j](https://github.com/eclipse-kura/kura/security/advisories/GHSA-4pwp-99h8-c44j)
- [https://gitlab.eclipse.org/security/cve-assignment/-/work_items/325](https://gitlab.eclipse.org/security/cve-assignment/-/work_items/325)

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- [Eclipse Kura Service Listing V1 unauthenticated denial of service](https://junglewise.ai/threats/cve-2026-112186-in-eclipse-kura-versions-5-4-0-through-5-6-2-the-service-listing)
- [Eclipse Kura Configuration REST API authorization bypass](https://junglewise.ai/threats/cve-2026-112185-in-eclipse-kura-versions-5-1-0-through-5-6-2-the-configuration)
- [Eclipse Kura path traversal in command file-upload handler](https://junglewise.ai/threats/cve-2026-111729-in-kura-versions-5-6-2-the-command-file-upload-handler-at-post)
- [Eclipse Kura BLE advertisement decoder infinite loop](https://junglewise.ai/threats/cve-2026-97402-in-eclipse-kura-versions-3-1-0-to-5-6-2-the-ibeacon-and-eddystone)