CVE-2026-47848

In specific scenarios involving WebSocket handshake redirects to a different origin, the Reactor Netty WebSocket client may leak credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier

  • Published Aug 26, 2026
  • CVSS 6.1 medium
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-47848 at the National Vulnerability Database