SB20260828205 - Information disclosure in Reactor Netty

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Main Vulnerability Database SB20260828205

SB20260828205 - Information disclosure in Reactor Netty

Published: August 28, 2026

Security Bulletin ID SB20260828205
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Information disclosure (CVE-ID: CVE-2026-41715)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to disclose credentials.

The vulnerability exists due to improper handling of credential forwarding in the Reactor Netty HTTP client redirect handling when following redirects from a secure endpoint to an insecure endpoint. A remote attacker can trigger a protocol downgrade redirect to disclose credentials.

The HTTP client must be explicitly configured to follow redirects, and user interaction is required.


Remediation

Install update from vendor's website.

References