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
Published: 2026-08-26
Score: 6.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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References
History

Wed, 26 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring reactor Netty
Vendors & Products Spring
Spring reactor Netty

Wed, 26 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Wed, 26 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 26 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
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
Title Reactor Netty WebSocket Client Leaks Credentials On Redirect
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}


Subscriptions

Spring Reactor Netty
cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-26T19:44:38.993Z

Reserved: 2026-05-20T10:00:53.146Z

Link: CVE-2026-47848

cve-icon Vulnrichment

Updated: 2026-08-26T19:44:32.571Z

cve-icon NVD

Status : Received

Published: 2026-08-26T20:17:27.070

Modified: 2026-08-26T20:17:27.070

Link: CVE-2026-47848

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T21:15:04Z

Weaknesses