Vulners
Lucene search
An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced content-length when the stream is closed via a frame with an empty payload. This can cause desynchronization issues with the backend server and could be used for request smuggling. The earliest affected version is 2.6.
| Reporter | Title | Published | Views | Family All 58 |
|---|---|---|---|---|
 | CVE-2026-33555 | 13 Apr 202600:00 | – | attackerkb |
 | CVE-2026-33555 | 13 Apr 202600:00 | – | alpinelinux |
 | CVE-2026-33555 affecting package haproxy for versions less than 2.9.11-5 | 9 May 202603:31 | – | cbl_mariner |
 | CVE-2026-33555 vulnerabilities | 7 Jul 202614:17 | – | cgr |
 | CVE-2026-33555 | 16 Apr 202620:00 | – | circl |
 | HAProxy 安全漏洞 | 13 Apr 202600:00 | – | cnnvd |
 | CVE-2026-33555 | 13 Apr 202600:00 | – | cve |
 | CVE-2026-33555 | 13 Apr 202600:00 | – | cvelist |
 | [SECURITY] [DSA 6291-1] haproxy security update | 22 May 202620:18 | – | debian |
 | CVE-2026-33555 | 13 Apr 202600:00 | – | debiancve |
10
Node
OR
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
29 Apr 2026 21:57Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14 - 5.8
EPSS0.00297
SSVC