Dashboard / CVE-2026-47692

CVE-2026-47692

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 54/100
Published: 2026-06-26 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
envoyproxy envoy 1.34.0 – 1.35.13

References & Advisories (1)

Bug Bounty Relevance

54 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

4.3 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.22%
Raw Score 0.002180
Percentile 12.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00218
2026-10-28
0.00218

Intelligence Sources

nvd ref →

External Links