CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Parent: CWE-436 - Interpretation Conflict

The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

370 vulnerabilities with CWE-444
CVE-2026-1525 MEDIUM
Undici < 6.24.0 - HTTP Request Smuggling via Duplicate Content-Length Headers
CVSS 6.5
CVE-2026-28497 CRITICAL
TinyWeb <2.03 - HTTP Request Smuggling
CVSS 9.1
CVE-2026-2835 CRITICAL
Pingora < 0.8.0 - HTTP Request Smuggling via HTTP/1.0 Transfer-Encoding Handling
CVSS 9.1
CVE-2026-2833 CRITICAL
Pingora < 0.8.0 - HTTP Request Smuggling via Upgrade Header Handling
CVSS 9.1
CVE-2026-20069 MEDIUM
Cisco Secure Firewall ASA and FTD - HTTP Request Smuggling via VPN Web Services
CVSS 4.3
CVE-2026-26365 MEDIUM
Akamai Ghost - HTTP Request Smuggling
CVSS 4.0
CVE-2026-1801 MEDIUM
libsoup - HTTP Request Smuggling Information Disclosure
CVSS 5.3
CVE-2026-1760 MEDIUM
SoupServer - HTTP Request Smuggling
CVSS 5.3
CVE-2026-1002 MEDIUM
Eclipse Vert.x Web - Static File Access Denial via URI Path Manipulation
CVSS 5.3
CVE-2026-23527 HIGH
h3 < 1.15.5 - HTTP Request Smuggling via Transfer-Encoding Header Case Mismatch
CVSS 8.9
CVE-2025-3110 HIGH
Openvpn Access Server < 3.1.0 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CVSS 7.5
CVE-2025-31958 LOW
HCL BigFix Service Management (SM) is susceptible to HTTP Request Smuggling
CVSS 3.7
CVE-2025-65114 HIGH
Apache Traffic Server: Malformed chunked message body allows request smuggling
CVSS 7.5
CVE-2025-12811 MEDIUM
Delinea Cloud Suite - HTTP Request Smuggling
CVE-2025-55018 MEDIUM
Fortinet FortiOS 7.6.0, 7.4.0-7.4.9, 7.2.0-7.2.12, 7.0.0-7.0.18, 6.4.3-6.4.15 - HTTP Request Smuggling
CVSS 5.8
CVE-2025-41082 MEDIUM
Altitude Communication Server - SSRF
CVE-2025-69225 MEDIUM
aiohttp < 3.13.3 - HTTP Request Smuggling via Range Header
CVSS 5.3
CVE-2025-69224 MEDIUM
aiohttp < 3.13.3 - HTTP Request Smuggling via Non-ASCII Character Bypass
CVSS 6.5
CVE-2025-12874 MEDIUM
Quest Coexistence Manager for Notes <3.8.2045 - SSRF
CVE-2025-14523 HIGH
Red Hat Enterprise Linux - HTTP Request Smuggling via Duplicate Host Header Handling
CVSS 8.2
CVE-2025-61258 HIGH
Outsystems Platform Server <11.18.1.37828 - DoS
CVSS 7.5
CVE-2025-66373 MEDIUM
Akamai Ghost < 2025-11-17 - HTTP Request Smuggling via Chunked Body Size Mismatch
CVSS 4.8
CVE-2025-12642 CRITICAL
lighttpd 1.4.80 - HTTP Header Smuggling
CVSS 9.1
CVE-2025-11915 MEDIUM
Google Cloud Vertex AI: Partner Models for MaaS - HTTP Request Smuggling via Proxy Desynchronization
CVE-2025-55315 CRITICAL
ASP.NET Core 2.3.0-2.3.5 - HTTP Request Smuggling via Inconsistent Request Interpretation
CVSS 9.9
Details
Vulnerabilities 370