Is CVE-2026-47845 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-47845?

CVE-2026-47845 has a CVSS v3 severity of MEDIUM (5.3).

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CVE-2026-47845

Description

In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier