CVE-2026-47848: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in Spring Reactor Netty
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
CVE-2026-47848: CWE-200 Exposure of Sensitive Information to an Unauthorized Actor in Spring Reactor Netty
Description
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
CVSS v3.1
Score 6.1medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-05-20T10:00:53.146Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8f408eacd9273b494e8064
Added to database: 08/26/2026, 19:37:50 UTC
Last updated: 08/27/2026, 02:55:04 UTC
Views: 12
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