CVE-2026-41715 MEDIUM

CVE-2026-41715: Reactor Netty HTTP Client Leaks Credentials On Protocol Downgrade Redirect

Vendor Spring
Product Reactor Netty
Weakness CWE-522 · Insufficiently protected credentials
Published June 9, 2026
Last update June 9, 2026

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 9, 2026 Record updated