CVE-2026-26994

Description

A flaw was found in uTLS. An active network attacker could exploit this vulnerability by manipulating the initial connection message (ClientHello) during the TLS handshake. This manipulation forces a downgrade from the more secure TLS 1.3 protocol to an older, less secure version like TLS 1.2. As a result, the client would accept the weaker connection without detecting the attack, potentially leading to information disclosure or allowing the attacker to identify uTLS connections.

Statement

Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Understanding the Weakness (CWE)

Access Control

Technical Impact: Bypass Protection Mechanism

Frequently Asked Questions

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