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CVE-2026-47844

5.3 · MEDIUM

In specific scenarios, the Reactor Netty HTTP Server may leak exception details across unrelated requests.

Published Aug 26, 2026EPSS 0.24%

Overview

CVE-2026-47844 is a medium-severity vulnerability. It was published on August 26, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In specific scenarios, the Reactor Netty HTTP Server may leak exception details across unrelated requests. In order for this to happen, the server must be configured with Brave Tracing.

Reactor Netty 1.3.0 - 1.3.6

Reactor Netty 1.1.0 - 1.2.18

Reactor Netty 1.0.52 and earlier

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refspring.io/security/cve-2026-47844

How CyberStrike helps

Frequently asked questions

What is CVE-2026-47844?

CVE-2026-47844 is a medium-severity vulnerability. It was published on August 26, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-47844?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-47844?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-47844?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-47844 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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