CVE-2026-41715

MEDIUM

Reactor Netty HTTP Client Leaks Credentials On Protocol Downgrade Redirect

Title source: cna

Description

In specific scenarios involving HTTP redirects from a secure to an insecure endpoint, the Reactor Netty HTTP client may leak credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects. Affected versions: Reactor Netty 1.0.0 through 1.0.51; 1.1.0 through 1.1.35; 1.2.0 through 1.2.17; 1.3.0 through 1.3.5.

References (1)

Core 1

Core References

https://spring.io/security/cve-2026-41715

Scores

CVSS v3 6.1

EPSS 0.0017

EPSS Percentile 6.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-522

Status published

Products (4)

Spring/Reactor Netty 1.0.0 - 1.0.52

Spring/Reactor Netty 1.1.0 - 1.1.36

Spring/Reactor Netty 1.2.0 - 1.2.18

Spring/Reactor Netty 1.3.0 - 1.3.6

Published Jun 09, 2026

Tracked Since Jun 09, 2026