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Exposure of Sensitive Information to an Unauthorized Actor in io.projectreactor.netty:reactor-netty

CVE-2025-22227

  • io.projectreactor.netty:reactor-netty
  • io.projectreactor.netty:reactor-netty-http
  • io.projectreactor.netty:reactor-netty5-http
Severity Medium
Score 6.1/10

Summary

In some specific scenarios with chained redirects, Reactor Netty HTTP client leaks credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects. This issue affects versions 1.0.0-M1 through 1.2.7, 1.3.0-M1 through 1.3.0-M4, and 2.0.0-M1 and after.

  • LOW
  • NETWORK
  • LOW
  • CHANGED
  • REQUIRED
  • NONE
  • LOW
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.

Advisory Timeline

  • Published