Severity:

HIGH RISK

(7.5)

Request Desync (CWE-444) in Envoy HTTP/3 to HTTP/1

CVE-2026-48743

Published:

Jun 26, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Vulnerability Type

Category:

HTTP Request Smuggling / Desynchronization

CWE:

CWE-444

Impact:

Request smuggling and route bypass at HTTP/1 origins

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

HTTP Request Smuggling / Desynchronization

CWE:

CWE-444

Impact:

Request smuggling and route bypass at HTTP/1 origins

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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