Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-47845

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/08/2026
Last modified:
27/08/2026

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.<br /> Reactor Netty 1.3.0 - 1.3.6<br /> Reactor Netty 1.1.0 - 1.2.18<br /> Reactor Netty 1.0.52 and earlier

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM

References to Advisories, Solutions, and Tools