CVE-2026-43968
Description
A flaw was found in cowlib. An Improper Neutralization of CRLF Sequences (Carriage Return Line Feed Injection) vulnerability allows a remote attacker to inject bare carriage return characters into Server-Sent Events (SSE) fields. This enables event splitting and injection of arbitrary event types and data payloads, potentially leading to client-side logic manipulation and cross-site scripting (XSS)-equivalent behavior.
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.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Application Data
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