Improper Handling of Length Parameter Inconsistency Affecting openshift-service-mesh/proxyv2-rhel9 package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-RHEL8-OPENSHIFTSERVICEMESHPROXYV2RHEL9-17810225
  • published3 Jul 2026
  • disclosed26 Jun 2026

Introduced: 26 Jun 2026

CVE-2026-47692  (opens in a new tab)
CWE-130  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 openshift-service-mesh/proxyv2-rhel9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openshift-service-mesh/proxyv2-rhel9 package and not the openshift-service-mesh/proxyv2-rhel9 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1