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5.3 Medium

CVE-2026-47844 In specific scenarios, the Reactor Netty HTTP Server may leak exception details across unrelated requests

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

Affected products and versions

Product Affected versions Fixed in
Reactor Netty 1.3 1.3.0 → 1.3.6 No fix stated
Reactor Netty 1.1 1.1.0 → 1.2.18 No fix stated
Reactor Netty 1.0 earliest → 1.0.52 No fix stated

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Reactor Netty

The 7 CVEs of Reactor Netty →
CVE-2026-47874 The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor… 5.3 Medium CVE-2026-47845 In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is… 5.3 Medium CVE-2026-47848 In specific scenarios involving WebSocket handshake redirects to a different origin, the Reactor Netty WebSocket… 6.1 Medium CVE-2026-47843 In specific scenarios involving multiple clients with different DNS resolver configurations, Reactor Netty may… 3.7 Low
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