CVE-2026-47848

Summary

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

Affected Software

VendorProductVersion RangeStatus
SpringReactor Netty1.3.0 <= 1.3.6affected
SpringReactor Netty1.1.0 <= 1.2.18affected
SpringReactor Netty0 <= 1.0.52affected

Weaknesses

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References