CVE-2026-47692
Medium · 4.8CVSS
4.8
EPSS
0.2%
Published
Jun 26, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Tumbleweed | istioctl | 0 | 1.30.2-1.1 |
Related vulnerabilities
- CVE-2026-47220 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48090 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-47205 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48743 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48706 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-48044 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-47775 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl
- CVE-2026-47221 Envoy is an open source edge and service proxy designed for cloud-native applications. Also affects istioctl