CVE-2026-35544

Description

A flaw was found in Roundcube Webmail. Insufficient sanitization of Cascading Style Sheets (CSS) in HTML email messages allows a remote attacker to bypass fixed-position mitigations. This can lead to a bypass of security controls designed to prevent certain types of attacks.

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)

Other

Technical Impact: Varies by Context

Frequently Asked Questions

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