AIKIDO-2026-980617
reactor-netty-http is vulnerable to Information Disclosure
61
Medium Risk
This Affects:
reactor-netty-httpTL;DR
reactor-netty-http can leak credentials during a WebSocket handshake redirect to a different origin. This happens when the HTTP client is explicitly configured to follow redirects. A remote party that triggers such a redirect can receive credentials meant for the original host. The patch stops forwarding credentials across that redirect.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and the WebSocket client is explicitly configured to follow redirects.
Background info
reactor-netty-http is vulnerable to Information Disclosure in versions 0.0.1 - 1.3.6.
How to fix this
Upgrade the io.projectreactor.netty:reactor-netty-http library to the patch version.
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