CVE•Published 2026-06-26•Modified 2026-06-27•0 articles on news•4 live references•NVD data

CVE-2026-47692Envoyproxy · Envoy

Vulnerability data via NVD (ingested)

CVSS v3.1

4.8

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L

EPSS percentile

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Weaknesses (CWE)

CWE-130Improper Handling of Length Parameter Inconsistency

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, PROXY Protocol v2 header generator emits TLVs beyond the maximum length of 65535 bytes, causing a mismatch between bytes written and the length field in the header. This can result in smuggled bytes on the upstream request. This vulnerability is fixed in 1.35.13, 1.36.9, 1.37.5, and 1.38.3.

Timeline

Published 2026-06-26

Modified 2026-06-27

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-47692

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Envoyproxy Envoy"

All exposed Envoyproxy Envoy instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Envoy"

HTTP body or banner mentions "Envoy" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-47692