In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol.
Reactor Netty 1.3.0 - 1.3.6
Reactor Netty 1.1.0 - 1.2.18
Reactor Netty 1.0.52 and earlier

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Thu, 27 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285
CWE-640

Thu, 27 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-290
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 02:45:00 +0000

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

Thu, 27 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285
CWE-640

Thu, 27 Aug 2026 00:30:00 +0000

Type Values Removed Values Added
Description In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. 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 HTTP Server may incorrectly evaluate proxy addresses
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-27T14:02:35.899Z

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

Link: CVE-2026-47845

cve-icon Vulnrichment

Updated: 2026-08-27T14:02:29.807Z

cve-icon NVD

Status : Received

Published: 2026-08-27T01:17:31.827

Modified: 2026-08-27T17:18:27.680

Link: CVE-2026-47845

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-27T16:00:15Z

Weaknesses