Upstream information

CVE-2026-47692 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) National Vulnerability Database
Base Score 4.8 4.3
Vector CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Adjacent Network Adjacent Network
Attack Complexity Low Low
Privileges Required High None
User Interaction None None
Scope Changed Unchanged
Confidentiality Impact None None
Integrity Impact Low Low
Availability Impact Low None
CVSSv3 Version 3.1 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • istioctl >= 1.30.2-1.1
  • istioctl-bash-completion >= 1.30.2-1.1
  • istioctl-zsh-completion >= 1.30.2-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11141

SUSE Timeline for this CVE

CVE page created: Fri Jun 26 22:09:46 2026
CVE page last modified: Mon Jun 29 11:38:55 2026