Lucene search
K

CVE-2026-48743 Envoy: HTTP/3 to HTTP/1 request smuggling via headers-only request with nonzero Content-Length

🗓️ 26 Jun 2026 17:34:22Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Envoy exposes HTTP/3 to HTTP/1 request smuggling via nonzero Content-Length in headers-only requests.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-48743
26 Jun 202617:34
attackerkb
CVE
CVE-2026-48743
26 Jun 202617:34
cve
EUVD
EUVD-2026-39822
26 Jun 202617:34
euvd
NVD
CVE-2026-48743
26 Jun 202618:17
nvd
Positive Technologies
PT-2026-51818
24 Jun 202600:00
ptsecurity
[
  {
    "vendor": "envoyproxy",
    "product": "envoy",
    "versions": [
      {
        "version": ">= 1.38.0, < 1.38.1",
        "status": "affected"
      },
      {
        "version": ">= 1.37.0, < 1.37.3",
        "status": "affected"
      },
      {
        "version": ">= 1.36.0, < 1.36.7",
        "status": "affected"
      },
      {
        "version": ">= 1.35.0, < 1.35.11",
        "status": "affected"
      }
    ]
  }
]

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