Advisories · Weakness
HTTP request smuggling.
Front and back ends that disagree on where a request ends. Every Advisory and CVE whose weakness (CWE) is one of these, newest first.
- CVSS 9.3 CriticalCritical · CVSS 9+
Pingora vulnerable to HTTP Request Smuggling via Premature Upgrade
- HTTP request smuggling
<0.8.0 · fixed in 0.8.0
GHSA-xq2h-p299-vjwv · CVE-2026-2833 - CVSS 4.0, no score published
Duplicate Advisory: HTTP Request Smuggling via Premature Upgrade
- HTTP request smuggling
<0.8.0 · fixed in 0.8.0
GHSA-f9v3-j2m7-4hpg - CVSS 4.0, no score published
Duplicate Advisory: HTTP Request Smuggling via HTTP/1.0 and Transfer-Encoding Misparsing
- HTTP request smuggling
<0.8.0 · fixed in 0.8.0
GHSA-262p-vjx5-45xh - CVSS 4.3 Medium
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Client-Side Request Smuggling Vulnerability
- Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
- Cisco Secure Firewall Threat Defense (FTD) Software
- HTTP request smuggling
- CVSS 4.0 Medium
HTTP request smuggling in Akamai Ghost
- Akamai Ghost
- HTTP request smuggling
- CVSS 6.9 Medium
Cloud Suite and Privilege Access Service– HTTP request smuggling vulnerability
- Delinea Inc. Cloud Suite and Privileged Access Service
- HTTP request smuggling
- CVSS 5.2 Medium
HTTP request smuggling in Fortinet FortiOS
- Fortinet FortiOS
- HTTP request smuggling
- CVSS 5.3 Medium
Libsoup: libsoup: http request smuggling via malformed chunk headers
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- HTTP request smuggling
- CVSS 5.3 Medium
Libsoup: soupserver: denial of service via http request smuggling
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- HTTP request smuggling
- CVSS 6.9 Medium
HTTP Request/Response Smuggling in Altitude Communication Server
- Altitude Communication Server
- HTTP request smuggling
- CVSS 6.9 Medium
Vert.x Web static handler component cache can be manipulated to deny the access to static files
- HTTP request smuggling
<4.5.24 || >=5.0.0.CR1, <5.0.7 · fixed in 4.5.24, 5.0.7
GHSA-cphf-4846-3xx9 · CVE-2026-1002 - CVSS 8.9 High
h3 v1 has Request Smuggling (TE.TE) issue
- HTTP request smuggling
<1.15.5 · fixed in 1.15.5
GHSA-mp2g-9vg9-f4cg · CVE-2026-23527 - CVSS 2.7 Low
AIOHTTP has unicode match groups in regexes for ASCII protocol elements
- HTTP request smuggling
<3.13.3 · fixed in 3.13.3
GHSA-mqqc-3gqh-h2x8 · CVE-2025-69225 - CVSS 6.3 Medium
AIOHTTP's unicode processing of header values could cause parsing discrepancies
- HTTP request smuggling
<3.13.3 · fixed in 3.13.3
GHSA-69f9-5gxw-wvc2 · CVE-2025-69224 - CVSS 6.3 Medium
HTTP Request Smuggling in Quest Coexistence Manager for Notes
- Quest Coexistence Manager for Notes
- HTTP request smuggling
- CVSS 6.9 Medium
Member Login Script 3.3 Client-Side Request Desynchronization Vulnerability
- Phpjabbers Member Login Script
- HTTP request smuggling
- CVSS 8.2 High
Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 10.0 Extended Update Support
- HTTP request smuggling
- CVSS 7.5 High
Outsystems Platform Server 11.18.1.37828 allows attackers to cause a denial of service via a crafted content-length value mismatching the body length.
- HTTP request smuggling
- CVSS 4.8 Medium
Akamai Ghost on Akamai CDN edge servers before 2025-11-17 has a chunked request body processing error that can result in HTTP request smuggling.
- HTTP request smuggling
- CVSS 6.9 Medium
HTTP Header Smuggling via Trailer Merge
- lighttpd
- HTTP request smuggling
- CVSS 6.9 Medium
Hono vulnerable to Vary Header Injection leading to potential CORS Bypass
- Other injection
- HTTP request smuggling
<4.10.3 · fixed in 4.10.3
GHSA-q7jf-gf43-6x6p · CVE-2025-71381 - CVSS 6.9 Medium
HTTP Desynchronisation in Vertex AI for certain third-party models
- Google Cloud Vertex AI: Partner Models for MaaS
- Google Cloud Vertex AI: Open Models for MaaS
- HTTP request smuggling
- CVSS 9.9 CriticalCritical · CVSS 9+, CVSS 7+ and EPSS
Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability
- HTTP request smuggling
>=8.0.0, <8.0.21 || >=9.0.0, <9.0.10 || >=10.0.0-rc.1.25451.107, <10.0.0-rc.2.25502.107 · fixed in 8.0.21, 9.0.10, 10.0.0-rc.2.25502.107
GHSA-5rrx-jjjq-q2r5 · CVE-2025-55315 - CVSS 7.5 HighCritical · KEV, CVSS 7+ and EPSSKEV · ransomware
Server-side request forgery in Oracle Corporation Oracle Configurator
- Oracle Corporation Oracle Configurator
- Path traversal
- Other injection
- CVSS 6.3 Medium
Http4s vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer section
- HTTP request smuggling
<0.23.31 · fixed in 0.23.31
GHSA-wcwh-7gfw-5wrr · CVE-2025-59822 - CVSS 6.9 Medium
WatchGuard Firebox Authentication Portal Request Smuggling Vulnerability
- WatchGuard Fireware OS
- HTTP request smuggling
- CVSS 9.8 CriticalCritical · CVSS 9+
A Host Header Injection vulnerability in Avigilon ACM v7.10.0.20 allows attackers to execute arbitrary code via supplying a crafted URL.
- Other injection
- HTTP request smuggling
- CVSS 2.9 Low
Netty vulnerable to request smuggling due to incorrect parsing of chunk extensions
- HTTP request smuggling
<4.1.125.Final || >=4.2.0.Alpha1, <4.2.5.Final · fixed in 4.1.125.Final, 4.2.5.Final
GHSA-fghv-69vj-qj49 · CVE-2025-58056 - CVSS 6.3 Medium
Eventlet affected by HTTP request smuggling in unparsed trailers
- HTTP request smuggling
<0.40.3 · fixed in 0.40.3
GHSA-hw6f-rjfj-j7j7 · CVE-2025-58068 - CVSS 4.0 Medium
HTTP request smuggling in AkamaiGhost
- AkamaiGhost
- HTTP request smuggling
- CVSS 4.0, no score published
mitmproxy binaries embed a vulnerable python-hyper/h2 dependency
- HTTP request smuggling
- CWE-1395
<12.1.2 · fixed in 12.1.2
GHSA-63cx-g855-hvv4 - CVSS 4.0 Medium
HTTP request smuggling in AkamaiGhost
- AkamaiGhost
- HTTP request smuggling
- CVSS 4.5 Medium
EspoCRM is vulnerable to access denial through double slash in URI corrupting router cache
- espocrm
- HTTP request smuggling
- CVSS 1.7 Low
AIOHTTP is vulnerable to HTTP Request/Response Smuggling through incorrect parsing of chunked trailer sections
- HTTP request smuggling
<3.12.14 · fixed in 3.12.14
GHSA-9548-qrrj-x5pj · CVE-2025-53643 - CVSS 7.5 High
Next.JS vulnerability can lead to DoS via cache poisoning
- HTTP request smuggling
>=15.0.4-canary.51, <15.1.8 · fixed in 15.1.8
GHSA-67rr-84xm-4c7r · CVE-2025-49826 - CVSS 3.7 Low
Next.js has a Cache poisoning vulnerability due to omission of the Vary header
- HTTP request smuggling
>=15.3.0, <15.3.3 · fixed in 15.3.3
GHSA-r2fc-ccr8-96c4 · CVE-2025-49005 - CVSS 6.5 Medium
Ruby WEBrick read_headers method can lead to HTTP Request/Response Smuggling
- HTTP request smuggling
<1.8.2 · fixed in 1.8.2
GHSA-r995-q44h-hr64 · CVE-2025-6442 - CVSS 8.6 High
Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies
- HTTP request smuggling
>=4.2.0, <4.2.3 || >=4.1.0, <4.1.8 || >=4.0.0, <=4.0.9 || <3.1.10 · fixed in 4.2.3, 4.1.8, 3.1.10
GHSA-6j2q-c73v-97c5 · CVE-2025-41235 - CVSS 4.0, no score published
Duplicate Advisory: Pingora Request Smuggling and Cache Poisoning
- HTTP request smuggling
<0.5.0 · fixed in 0.5.0
GHSA-3qmp-g57h-rxf2 - CVSS 7.4 High
Pingora Request Smuggling and Cache Poisoning
- HTTP request smuggling
>=0.0.0-0, <0.5.0 · fixed in 0.5.0
GHSA-93c7-7xqw-w357 · CVE-2025-4366 - CVSS 6.5 Medium
HTTP request smuggling in node
- node
- HTTP request smuggling
- CVSS 8.7 High
HTTP Request Smuggling in Google Cloud Classic Application Load Balancer due to Improper Chunked Encoding Validation
- Google Cloud Classic Application Load Balancer
- HTTP request smuggling
- CVSS 5.4 Medium
HTTP request smuggling in varnish-software Varnish Cache
- varnish-software Varnish Cache
- HTTP request smuggling
- CVSS 9.1 CriticalCritical · CVSS 9+
Radware Cloud Web Application Firewall (WAF) before 2025-05-07 allows remote attackers to bypass firewall filters by placing random data in the HTTP request body when using the HTTP GET method.
- HTTP request smuggling
- CVSS 9.1 CriticalCritical · CVSS 9+
h11 accepts some malformed Chunked-Encoding bodies
- HTTP request smuggling
<0.16.0 · fixed in 0.16.0
GHSA-vqfr-h8mv-ghfj · CVE-2025-43859 - CVSS 7.7 High
An issue in OpenResty lua-nginx-module v.0.10.26 and before allows a remote attacker to conduct HTTP request smuggling via a crafted HEAD request.
- HTTP request smuggling
- CVSS 9.1 CriticalCritical · CVSS 9+
croogo Host header injection
- Other injection
- HTTP request smuggling
<=3.0.2 · no fixed version yet
GHSA-847x-x4jg-6gf4 · CVE-2024-29643 - CVSS 5.9 Medium
CVE-2025-1386- Query smuggling in ch-go library
- HTTP request smuggling
<0.65.0 · fixed in 0.65.0
GHSA-m454-3xv7-qj85 · CVE-2025-1386 - CVSS 9.1 CriticalCritical · CVSS 9+
RoadRunner is at risk of HTTP Request/Response Smuggling through vulnerable dependency
- HTTP request smuggling
- CWE-1395
<2025.1.0 · fixed in 2025.1.0
GHSA-g9pc-8g42-g6vq · CVE-2025-22871 - CVSS 7.5 High
Apache Traffic Server: Malformed chunked message body allows request smuggling
- Apache Software Foundation Apache Traffic Server
- HTTP request smuggling
- CVSS 7.5 High
Remix and React Router allow URL manipulation via Host / X-Forwarded-Host headers
- HTTP request smuggling
>=7.0.0, <7.4.1 · fixed in 7.4.1
GHSA-4q56-crqp-v477 · CVE-2025-31137 - CVSS 4.7 Medium
IBM Cognos Controller HTTP response smuggling
- IBM Cognos Controller
- IBM Controller
- HTTP request smuggling
- CVSS 5.4 Medium
HTTP request smuggling in varnish-software Varnish Cache
- varnish-software Varnish Cache
- HTTP request smuggling
- CVSS 7.5 High
Gunicorn HTTP Request/Response Smuggling vulnerability
- HTTP request smuggling
<22.0.0 · fixed in 22.0.0
GHSA-hc5x-x2vx-497g · CVE-2024-6827 - CVSS 7.5 High
HTTP Request Smuggling in netease-youdao/qanything
- netease-youdao/qanything
- HTTP request smuggling
- CVSS 5.3 Medium
HTTP request smuggling in JetBrains Ktor
- JetBrains Ktor
- HTTP request smuggling
- CVSS 10.0 CriticalCritical · CVSS 9+
HTTP Response Smuggling Vulnerability in libhv
- ithewei libhv
- HTTP request smuggling
- CVSS 6.8 Medium
In Perfex Crm < 3.2.1, an authenticated attacker can send a crafted HTTP POST request to the affected upload_sales_file endpoint.
- HTTP request smuggling
- CWE-1287
- CVSS 7.1 High
Envoyproxy: openshift service mesh envoy http header sanitization bypass leading to dos and unauthorized access
- Red Hat OpenShift Service Mesh 2
- HTTP request smuggling
- CVSS 9.1 CriticalCritical · CVSS 9+
In Menlo On-Premise Appliance before 2.88, web policy may not be consistently applied properly to intentionally malformed client requests.
- HTTP request smuggling