CRITICALVulnerability
Verified
Global
NVD CRITICAL: CVE-2026-28368 — A flaw was found in Undertow. This vulnerability allows a remote attacker to con...
Friday, March 27, 2026 at 05:16 PM UTC·Source: NIST NVD
Updated: Thursday, April 2, 2026 at 05:46 PM UTC
Executive Summary
A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources.
Analysis
A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources.
CVSS Score: 8.7. Published: 2026-03-27T17:16:27.993.