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OpenAdvisories
Medium · 5.3 CVE-2026-47845 EUVD-2026-66819GHSA-c599-m66r-v62w

Reactor Netty HTTP Server may incorrectly evaluate proxy addresses

Published Aug 26, 2026 · Updated Aug 27, 2026 · Assigned by vmware

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

Affected products

VendorProductAffectedFixed
Spring Reactor Netty 1.3.0 – ≤ 1.3.6, 1.1.0 – ≤ 1.2.18, ≤ 1.0.52 —

References